commit fa9c43fae868398f6a5f5f45dcef455205b4966e
Author: Nick Hermes <nick@hermes.local>
Date:   Tue May 26 16:23:04 2026 +0000

    docs: scaffold polisher-control foundation

diff --git a/.gitignore b/.gitignore
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+# Python
+__pycache__/
+*.py[cod]
+.pytest_cache/
+.ruff_cache/
+.mypy_cache/
+.venv/
+venv/
+*.egg-info/
+
+# PlatformIO / embedded
+.pio/
+.vscode/.browse.c_cpp.db*
+.vscode/c_cpp_properties.json
+
+# Runtime data: never commit real run data
+/data/
+data/runs/
+data/manual/
+*.parquet
+*.npz
+
+# Local config/secrets
+.env
+*.local.*
+secrets.*
diff --git a/AGENTS.md b/AGENTS.md
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+# AGENTS.md — Polisher-Control Repo Rules
+
+This repository is an external-collaborator technical workspace for the P11 / Fullum / GigaBIT polisher-control implementation.
+
+## Scope
+
+Allowed work:
+- Teensy firmware
+- Raspberry Pi / host controller
+- touchscreen/manual-mode workflow support
+- host↔Teensy protocol
+- telemetry/logging/run artifacts
+- safety/interlocks/alarms/watchdogs
+- machine capability profile
+- tests, commissioning scripts, and technical docs
+
+Out of scope:
+- optical figuring strategy
+- metrology interpretation
+- optimization / calibration logic
+- client/commercial context
+- private Antoine notes / unrelated projects
+- credentials or secrets
+
+## Architecture rule
+
+`polisher-control` executes. It does not decide strategy.
+
+If a change affects architecture, telemetry names/units/rates, safety behavior,
+protocol semantics, or v1 scope, log it as a proposal and ask Antoine before
+treating it as accepted direction.
+
+## Commit hygiene
+
+Prefer small commits:
+- `docs: ...`
+- `firmware: ...`
+- `host: ...`
+- `test: ...`
+- `config: ...`
+
+Never commit real machine data, secrets, invoices, tokens, or private notes.
diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
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+# Contributing
+
+## Working style
+
+- Keep changes small and reviewable.
+- Add or update docs when changing protocol, telemetry, state machine, safety, or data layout.
+- Add tests for host-side state-machine and contract behavior before relying on hardware.
+- Never hide clipping, rejected commands, or safety changes; emit explicit events/NACKs.
+
+## Definition of done for a feature
+
+- Implementation exists.
+- Test or bench verification exists.
+- Relevant docs are updated.
+- Safety or contract impact is stated.
+- Antoine-facing open questions are listed if the decision is not locked.
diff --git a/Makefile b/Makefile
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+.PHONY: test validate-json tree
+
+test:
+	python -m pytest -q
+
+validate-json:
+	python scripts/validate_json.py
+
+tree:
+	python scripts/print_tree.py
diff --git a/README.md b/README.md
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+# Polisher-Control
+
+Machine-side execution stack for the Fullum / GigaBIT swing-arm polisher.
+
+This repository is for Cédric's implementation work on the **controller, firmware,
+manual-mode UI support, telemetry, safety/interlocks, and run artifacts**. It is
+aligned with the broader Polisher Software Suite:
+
+```text
+polisher-sim   -> planning / digital twin / calibration / metrology intelligence
+polisher-post  -> validation + packaging of controller-safe jobs
+polisher-control -> safe machine execution + telemetry + operator workflow
+shared contracts -> schemas, logs, machine capabilities, provenance
+```
+
+## v1 finish line
+
+Normand can operate the polisher manually from the touchscreen, with:
+
+- safe force/table/spindle control;
+- KWR75B-CAN force/torque sensor integration;
+- ODrive S1 + M8325s spindle drive integration;
+- Teensy-side fast safety and setpoint/telemetry loop;
+- host-side state machine, logs, status, and data export;
+- synchronized telemetry at **>=100 Hz**;
+- manual-session logs usable by `polisher-sim` / `polisher-post` later;
+- safety/interlocks enforced and visible in logs.
+
+## What this repo must NOT become
+
+`polisher-control` does **not** own optical strategy. It must not interpret
+interferograms, optimize polishing passes, learn calibration parameters, or invent
+correction programs. Those decisions belong upstream in `polisher-sim` and
+`polisher-post`.
+
+The controller should be boring, deterministic, auditable, and conservative.
+
+## Start here
+
+1. Read [`docs/00-start-here.md`](docs/00-start-here.md).
+2. Read [`docs/02-v1-scope.md`](docs/02-v1-scope.md).
+3. Review the state machine and safety rules in [`docs/03-architecture.md`](docs/03-architecture.md).
+4. Use [`docs/08-commissioning-checklist.md`](docs/08-commissioning-checklist.md) during hardware bring-up.
+5. Track implementation using [`ROADMAP.md`](ROADMAP.md).
+
+## Repository map
+
+```text
+firmware/teensy/        Teensy 4.1 firmware scaffold and protocol/telemetry structs
+host/                   Python host-controller scaffold for RPi/PC side
+shared/schemas/         Contract schemas mirrored from the current software suite
+shared/machine/         Fullum-alpha machine capability profile draft
+docs/                   Cédric-facing implementation docs and checklists
+docs/nick-generated/    Nick-generated source-grounded guidance notes
+scripts/                Utility/validation scripts
+tests/                  Host-side contract/state-machine tests
+```
+
+## Current source alignment
+
+Generated: 2026-05-26. This foundation is a repo scaffold and implementation aid,
+not a replacement for the approved P11 source specifications. If this repo and
+the source specs disagree, ask Antoine before changing architecture, safety,
+telemetry contracts, or scope.
diff --git a/ROADMAP.md b/ROADMAP.md
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+# Polisher-Control Roadmap
+
+## Phase 0 — Repository foundation
+
+- [x] Create repository structure.
+- [x] Add ecosystem boundary docs.
+- [x] Add v1 scope and acceptance checklist.
+- [x] Add host/firmware scaffolds.
+- [x] Mirror current shared schemas.
+
+## Phase 1 — Contracts first
+
+- [ ] Lock protocol frame format: message IDs, payload layout, CRC, ACK/NACK.
+- [ ] Lock telemetry channel list, units, rates, validity encoding.
+- [ ] Lock event/alarm code table.
+- [ ] Validate `controller-job.v1` and `run-log.v1` fixtures.
+- [ ] Implement host-side state machine tests before hardware logic grows.
+
+## Phase 2 — Teensy bench bring-up
+
+- [ ] Teensy boot/status heartbeat.
+- [ ] Host↔Teensy serial link with ACK/NACK and CRC.
+- [ ] KWR75B-CAN receive path with measured sample rate and stale-frame watchdog.
+- [ ] Encoder acquisition for table and arm.
+- [ ] ODrive command/telemetry interface selected and documented.
+- [ ] Force actuator command path selected and documented.
+
+## Phase 3 — Manual mode MVP
+
+- [ ] Host UI/manual-mode workflow with geometric gate.
+- [ ] Manual setpoints: force, table RPM, spindle RPM, optional modulation.
+- [ ] Teensy inner loop: setpoint ramping, force PID, telemetry, fast interlocks.
+- [ ] Manual-session log and telemetry CSV written to `/data/manual/{session_id}/`.
+- [ ] Status file updated at `/data/status.json`.
+
+## Phase 4 — Safety and commissioning
+
+- [ ] E-stop behavior verified independently of software state.
+- [ ] Force over-limit, encoder loss, drive fault, F/T invalid/stale faults verified.
+- [ ] Host watchdog and firmware heartbeat verified.
+- [ ] FAULTED exits only by explicit operator reset.
+- [ ] Tool-weight compensation offset commissioned and logged.
+
+## Phase 5 — Controller-job dry run
+
+- [ ] `controller-job.v1` 4-gate intake implemented.
+- [ ] Segment lifecycle exercised on bench/simulator.
+- [ ] `run-log.v1` emitted with commanded-vs-actual structure.
+- [ ] Program execution remains disabled for production until Antoine explicitly accepts readiness.
diff --git a/docs/00-start-here.md b/docs/00-start-here.md
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+# Start Here — Cédric Build Brief
+
+## Mission
+
+Build the machine-side control stack for the Fullum swing-arm polisher so Normand can run manual polishing sessions safely while producing clean telemetry for the rest of the software suite.
+
+## v1 priority order
+
+1. Safety/interlocks and deterministic state machine.
+2. Manual mode from the touchscreen / host UI.
+3. Stable host↔Teensy setpoint + telemetry protocol.
+4. KWR75B-CAN force/torque acquisition and stale-frame detection.
+5. Table/arm encoder acquisition and synchronized timestamps.
+6. ODrive spindle command/telemetry path.
+7. Run/manual logs and `/data/` file layout.
+8. Controller-job intake dry-run for future program execution.
+
+## Mental model
+
+The host says: "run these approved setpoints and log what happens."
+
+The Teensy says: "accepted/rejected, here is measured reality, here are events/faults."
+
+Neither side invents polishing strategy.
+
+## Ask Nick for
+
+- protocol notes;
+- firmware module breakdowns;
+- test checklists;
+- telemetry schema clarifications;
+- state-machine/safety edge cases;
+- concise implementation notes in `docs/nick-generated/`.
diff --git a/docs/01-ecosystem-boundaries.md b/docs/01-ecosystem-boundaries.md
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+# Ecosystem Boundaries
+
+## polisher-sim
+
+Owns planning intelligence:
+- metrology ingestion;
+- mirror state and residuals;
+- removal prediction;
+- dwell/preset planning;
+- calibration and uncertainty;
+- campaign reports.
+
+## polisher-post
+
+Owns translation and validation:
+- schema validation;
+- machine capability checks;
+- unit normalization;
+- segmentation;
+- packaging `controller-job.v1`;
+- run-log normalization back into analysis format.
+
+## polisher-control
+
+Owns machine execution:
+- state machine;
+- manual mode;
+- setpoint execution;
+- force loop interface;
+- telemetry;
+- alarms/interlocks;
+- pause/resume/abort;
+- run/manual-session logs;
+- operator workflow.
+
+## Shared contracts
+
+Own schemas and names that must not drift silently:
+- `controller-job.v1`;
+- `run-log.v1`;
+- `manual-session-log.v1`;
+- `machine-capabilities.v1`;
+- telemetry channel names;
+- event/alarm codes.
+
+## Boundary rule
+
+If you are about to add planning, optimization, calibration, or metrology interpretation to this repo, stop and ask Antoine. That likely belongs upstream.
diff --git a/docs/02-v1-scope.md b/docs/02-v1-scope.md
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+# v1 Scope
+
+## In scope
+
+- Manual mode with live operator setpoints.
+- Full safety/interlock handling.
+- Host↔Teensy command/telemetry protocol.
+- KWR75B-CAN force/torque sensor integration.
+- Table and arm encoder acquisition.
+- ODrive S1 + M8325s spindle control/telemetry path.
+- Force actuator command path and tool-weight compensation.
+- Synchronized telemetry at >=100 Hz.
+- Manual-session logs and raw telemetry CSV.
+- USB SSD `/data/` storage layout.
+- `status.json` machine summary.
+- Controller-job validation path for future use.
+
+## Explicitly not in v1
+
+- Figuring strategy.
+- Metrology import/interpretation.
+- Calibration updates.
+- Autonomous optimization.
+- Powered Zero-G/admittance manipulation mode.
+- Remote control of the machine.
+- Multi-pass orchestration inside the controller.
+
+## First success condition
+
+A real manual polishing session can be run safely, and the resulting telemetry/logs are coherent enough for Antoine to analyze downstream.
diff --git a/docs/03-architecture.md b/docs/03-architecture.md
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+# Architecture
+
+## Runtime split
+
+### Host controller — Python on RPi/PC
+
+Responsibilities:
+- operator workflow and manual-mode UI integration;
+- state machine orchestration;
+- controller-job intake validation;
+- geometry gate;
+- setpoint command stream;
+- telemetry capture;
+- logs, manifests, hashes, status file;
+- slow watchdogs and data export.
+
+### Teensy firmware — C++ on Teensy 4.x
+
+Responsibilities:
+- inner loop around ~1 kHz;
+- KWR75B-CAN F/T receive path;
+- encoder acquisition;
+- force PID output;
+- table/spindle/actuator command outputs;
+- fast safety checks;
+- heartbeat supervision;
+- telemetry frames at >=100 Hz;
+- ACK/NACK and event/fault frames.
+
+## State machine
+
+Current accepted state names:
+
+```text
+IDLE
+JOB_LOADED
+READY
+RUNNING
+PAUSED
+ABORTING
+COMPLETED
+ABORTED
+FAULTED
+MANUAL
+```
+
+Important rules:
+- `FAULTED` exits only through explicit operator reset.
+- `JOB_LOADED -> READY` requires operator acknowledge.
+- `IDLE -> MANUAL` is allowed only with no job loaded.
+- Illegal transitions are errors and events, never silent ignores.
+- Manual mode uses the same safety/interlocks as job mode.
+
+## Manual mode sequence
+
+1. Machine starts in `IDLE`.
+2. Operator opens Manual Mode.
+3. Host enforces the geometric gate.
+4. Host sends `MANUAL_START` to Teensy.
+5. Teensy ACKs or NACKs with a machine-readable reason.
+6. Host sends live `SETPOINT` updates.
+7. Teensy emits telemetry and events.
+8. Operator stops; host sends `MANUAL_STOP`.
+9. Host writes manual-session log and artifacts.
diff --git a/docs/04-host-teensy-protocol-v1.md b/docs/04-host-teensy-protocol-v1.md
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+# Host ↔ Teensy Protocol v1 — Working Spec
+
+Status: draft scaffold. Cédric should finalize the exact wire format before implementation locks.
+
+## Philosophy
+
+This is a setpoint/telemetry protocol, not G-code.
+
+Requirements:
+- versioned frames;
+- length-delimited or COBS-delimited framing;
+- CRC-16 or CRC-32 on every frame;
+- deterministic parsing;
+- ACK/NACK for every command;
+- machine-readable NACK reason codes;
+- no text parsing in the control path.
+
+## Host → Teensy messages
+
+- `HEARTBEAT`
+- `MANUAL_START`
+- `SETPOINT`
+- `MANUAL_STOP`
+- `SEGMENT_START`
+- `PAUSE`
+- `RESUME`
+- `ABORT`
+- `ESTOP`
+
+## Teensy → Host messages
+
+- `ACK`
+- `NACK`
+- `TELEMETRY`
+- `EVENT`
+- `SEGMENT_DONE`
+- `ABORT_COMPLETE`
+
+## v1 production subset
+
+Manual v1 only needs:
+- `HEARTBEAT`
+- `MANUAL_START`
+- `SETPOINT`
+- `MANUAL_STOP`
+- `ACK` / `NACK`
+- `TELEMETRY`
+- `EVENT`
+
+But define and parse the future segment messages now so Phase 3 does not require a protocol reset.
+
+## Open protocol choices
+
+- JSON-lines, MessagePack, or compact binary structs?
+- CRC-16 vs CRC-32?
+- COBS framing vs length-prefix + CRC?
+- Serial baud rate and reconnect behavior?
+- Whether heartbeat is host-only or bidirectional?
+
+Recommendation: choose the simplest robust format Cédric is comfortable debugging on the bench.
diff --git a/docs/05-telemetry-channel-spec-v1.md b/docs/05-telemetry-channel-spec-v1.md
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+# Telemetry Channel Spec v1
+
+## Core channels — required at >=100 Hz
+
+```text
+timestamp_us
+table_angle_deg
+arm_angle_deg
+fz_n
+mx
+my
+mz
+spindle_rpm_actual
+table_rpm_actual
+arm_amplitude_deg_derived
+arm_center_deg_derived
+machine_state
+force_setpoint_n
+```
+
+## Strongly recommended channels
+
+```text
+fx_n
+fy_n
+ft_status
+z_servo_iq_v
+z_brake_engaged
+spindle_drive_state
+spindle_drive_error
+spindle_bus_voltage_v
+spindle_iq_a
+spindle_motor_temp_c
+arm_angle_linearized_deg
+table_rpm_setpoint
+spindle_rpm_setpoint
+force_actuator_cmd
+estop_active
+interlock_state
+mode
+fz_raw_n
+fz_contact_n
+```
+
+## Principles
+
+- One monotonic Teensy timestamp source.
+- Raw values, not only filtered values.
+- Commanded and actual values are both present.
+- Sensor validity is explicit; never substitute fake good values.
+- Gaps are detectable from timestamps.
+- Header names are stable because downstream analysis will depend on them.
+
+## CSV baseline
+
+First-write compatibility format is CSV. Later processing may produce Parquet/downsampled traces, but raw CSV must be preserved during commissioning.
diff --git a/docs/06-event-alarm-codes-v1.md b/docs/06-event-alarm-codes-v1.md
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+# Event and Alarm Codes v1
+
+Status: draft canonical table for implementation.
+
+## Hard-stop faults — reset required
+
+- `ESTOP_ACTIVATED`
+- `FORCE_OVER_LIMIT`
+- `ENCODER_LOST`
+- `DRIVE_FAULT`
+- `FT_SENSOR_INVALID`
+
+## Recoverable pauses / warnings
+
+- `FORCE_UNDER_LIMIT`
+- `SPINDLE_RPM_DEVIATION`
+- `TABLE_RPM_DEVIATION`
+- `HOST_COMMS_TIMEOUT`
+- `ARM_GEOMETRY_DIVERGENCE`
+
+## Refused transitions / blocked starts
+
+- `GEOMETRY_NOT_VALIDATED`
+- `ARM_HANDLING_INTERLOCK`
+- `WRONG_ARTIFACT_TYPE`
+- `SCHEMA_VALIDATION_FAILED`
+- `WRONG_MACHINE_ID`
+- `CONTROLLER_VERSION_MISMATCH`
+- `UNSUPPORTED_CAPABILITY`
+- `ILLEGAL_TRANSITION`
+
+## Event fields
+
+Every event should include:
+
+```json
+{
+  "timestamp": "ISO-8601 or host monotonic mapping",
+  "code": "GEOMETRY_NOT_VALIDATED",
+  "severity": "info|warning|critical",
+  "state": "IDLE|MANUAL|...",
+  "detail": "short machine-readable or operator-readable detail"
+}
+```
+
+Do not use free text as the only control signal. Human messages are for UI; codes are for software.
diff --git a/docs/07-manual-mode-workflow.md b/docs/07-manual-mode-workflow.md
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+# Manual Mode Workflow
+
+## Operator flow
+
+1. Hardware HOA selector in Auto.
+2. Machine in `IDLE`.
+3. Operator selects Manual Mode.
+4. UI presents the geometric gate:
+   - `r_menante`
+   - `L_menee`
+   - `R_tool`
+   - configured arm amplitude
+   - configured arm center
+5. Operator confirms values.
+6. Operator enters setpoints:
+   - force N
+   - table RPM
+   - spindle RPM
+   - optional force modulation harmonic/amplitude/phase
+7. Operator presses Start.
+8. Host sends `MANUAL_START`.
+9. Operator may adjust setpoints live.
+10. Operator presses Stop.
+11. Host writes the manual-session log, telemetry CSV, events, manifest, and status.
+
+## Hard rules
+
+- Manual mode cannot start with stale geometry.
+- Manual mode uses the same safety/interlocks as job mode.
+- Every setpoint change is logged.
+- Telemetry always runs while force/motion is active.
+- Tool removal uses the documented mechanical sequence; no powered Zero-G in v1.
diff --git a/docs/08-commissioning-checklist.md b/docs/08-commissioning-checklist.md
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+# Commissioning Checklist
+
+## Bench — no machine motion
+
+- [ ] Host can open serial link to Teensy.
+- [ ] HEARTBEAT / ACK / NACK verified.
+- [ ] Bad CRC/frame rejected with NACK or ignored safely.
+- [ ] State machine illegal transitions logged.
+- [ ] Telemetry frames parse at expected rate.
+
+## Sensor bring-up
+
+- [ ] KWR75B-CAN isolated CAN wiring verified.
+- [ ] CAN bit rate confirmed.
+- [ ] Vendor frame map decoded into Fx/Fy/Fz/Mx/My/Mz/status.
+- [ ] F/T stale-frame watchdog tested.
+- [ ] Table encoder angle stable and monotonic.
+- [ ] Arm encoder angle stable.
+
+## Drive bring-up
+
+- [ ] ODrive runtime interface selected and documented.
+- [ ] ODrive enable/disable/fault reset path verified.
+- [ ] Spindle RPM command and actual feedback verified.
+- [ ] Z force actuator command path verified with safe limits.
+- [ ] Brake engaged feedback verified if installed.
+
+## Safety
+
+- [ ] E-stop hard circuit tested independent of software state.
+- [ ] Force over-limit response tested.
+- [ ] Encoder-loss response tested.
+- [ ] Drive-fault response tested.
+- [ ] Host timeout -> pause -> abort behavior tested.
+- [ ] FAULTED requires explicit reset.
+
+## Manual run
+
+- [ ] Geometric gate blocks stale/missing geometry.
+- [ ] Manual start succeeds after valid geometry.
+- [ ] Force/table/spindle setpoints ramp smoothly.
+- [ ] Live setpoint changes are logged.
+- [ ] Telemetry CSV has required header and >=100 Hz samples.
+- [ ] Manual-session log includes setpoint history and actual summary.
+- [ ] Artifacts are saved under `/data/manual/{session_id}/`.
diff --git a/docs/09-acceptance-checklist.md b/docs/09-acceptance-checklist.md
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+# Acceptance Checklist
+
+This checklist condenses the current P11 firmware/control spec for implementation tracking.
+
+## Input contract
+
+- [ ] Accepts `controller-job.v1` only.
+- [ ] Rejects `job.v1` and malformed input.
+- [ ] Runs 4-gate intake validation.
+- [ ] Rejects wrong `machine_id`.
+- [ ] Rejects incompatible `controller_version` or unsupported capability.
+
+## Execution
+
+- [ ] Sequential segment execution exists for future job mode.
+- [ ] Force PID tracks setpoint within agreed commissioning tolerance.
+- [ ] Force modulation uses live table encoder angle.
+- [ ] Table and spindle RPM follow commands.
+- [ ] Pause time excluded from segment polishing time.
+
+## Telemetry
+
+- [ ] Core channels logged at >=100 Hz.
+- [ ] Single monotonic timestamp source.
+- [ ] Commanded and actual values both present.
+- [ ] Sensor faults are detectable.
+- [ ] CSV parseable by standard tools.
+
+## State machine and safety
+
+- [ ] All accepted states/transitions implemented.
+- [ ] Illegal transitions logged.
+- [ ] Operator acknowledge cannot be bypassed.
+- [ ] E-stop all-stop independent of software state.
+- [ ] Interlocks implemented with documented thresholds.
+- [ ] Watchdog timeout causes pause, then abort.
+- [ ] `FAULTED` exits only through explicit reset.
+
+## Manual mode
+
+- [ ] `MANUAL` reachable from `IDLE`.
+- [ ] Live setpoint adjustment works.
+- [ ] Geometric gate blocks stale geometry.
+- [ ] Setpoint changes are timestamped events.
+- [ ] Manual-session log emitted on exit.
+- [ ] Safety behavior identical to job mode.
+
+## Data
+
+- [ ] `/data/manual/{session_id}/` and `/data/runs/{run_id}/` layouts respected.
+- [ ] `status.json` maintained.
+- [ ] Hashes/manifests emitted.
+- [ ] Raw telemetry preserved during commissioning.
diff --git a/docs/10-open-questions-for-cedric.md b/docs/10-open-questions-for-cedric.md
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+# Open Questions for Cédric
+
+## Table interface
+
+- Confirm KBSI-240D opto-isolated interface or replacement.
+- Confirm table encoder transport and transceiver.
+- Confirm whether the table drive or command path changes electrically.
+
+## Spindle / ODrive
+
+- Define ODrive runtime command and telemetry path; CAN 2.0B at 1 Mbps is preferred unless replaced.
+- Define command scaling for velocity, enable/disable, fault reset, and safe stop.
+- Define telemetry subset: actual RPM, drive state/error, DC bus voltage, q-axis current, motor temperature if available.
+- Export final ODrive config with release.
+- Define spindle enable/fault I/O into HOA + safety chain.
+
+## Z-axis / force actuator
+
+- Confirm SV2A-2150 torque/current command mode and scaling.
+- Confirm enable/fault wiring and Iq/current monitor path.
+- Define Z limit-switch / hard-stop wiring into safety chain.
+- Define NC 24 VDC brake coil driver and brake-engaged diagnostic feedback.
+
+## Cross-cutting
+
+- Select safety relay model.
+- Confirm KWR75B-CAN frame map, byte order, scaling, status bits, and update rate.
+- Confirm final serial/protocol wire format.
diff --git a/docs/nick-generated/2026-05-26-polisher-control-foundation.md b/docs/nick-generated/2026-05-26-polisher-control-foundation.md
new file mode 100644
index 0000000..1fbba1e
--- /dev/null
+++ b/docs/nick-generated/2026-05-26-polisher-control-foundation.md
@@ -0,0 +1,37 @@
+---
+title: Polisher-Control Repository Foundation
+status: draft
+requested_by: Antoine Letarte
+generated_by: Nick / Hermes
+project: P11-Polisher-Fullum
+repo: polisher-control
+source_truth: false
+created: 2026-05-26
+privacy: technical-only
+---
+
+# Polisher-Control Repository Foundation
+
+## Purpose
+
+Give Cédric a clean starting point for the machine-side control implementation without mixing in upstream planning or private project context.
+
+## What to build first
+
+1. Host↔Teensy protocol and ACK/NACK behavior.
+2. State machine and illegal-transition tests.
+3. KWR75B-CAN receive path and F/T validity/stale-frame watchdog.
+4. Manual mode with geometric gate.
+5. Telemetry CSV and manual-session log.
+6. Safety interlock behavior.
+
+## Key instruction
+
+Manual mode is not a throwaway mode. Manual telemetry is the calibration dataset for the entire future digital-twin loop. Keep channel names, timestamps, setpoint history, and force/angle data stable from the start.
+
+## Acceptance checks
+
+- [ ] Normand can run manual mode safely.
+- [ ] Every session produces telemetry and a manual-session log.
+- [ ] Every fault or rejected command is visible as an event/alarm.
+- [ ] The controller never invents polishing strategy.
diff --git a/docs/nick-generated/README.md b/docs/nick-generated/README.md
new file mode 100644
index 0000000..5637c25
--- /dev/null
+++ b/docs/nick-generated/README.md
@@ -0,0 +1,15 @@
+# Nick-Generated Notes
+
+This folder is for source-grounded technical notes Nick generates for Cédric.
+
+Rules:
+- technical-only;
+- no invoices/rates/private context/secrets;
+- mark generated notes `source_truth: false`;
+- if a note changes architecture, safety, telemetry contracts, protocol semantics, or v1 scope, ask Antoine before treating it as accepted.
+
+Suggested filename:
+
+```text
+YYYY-MM-DD-short-topic.md
+```
diff --git a/docs/reference/source-map.md b/docs/reference/source-map.md
new file mode 100644
index 0000000..48b6d66
--- /dev/null
+++ b/docs/reference/source-map.md
@@ -0,0 +1,17 @@
+# Source Map
+
+This repo foundation is derived from the current P11 / Fullum polisher-control planning context.
+
+Primary source documents:
+
+- Fullum Polisher — Machine Control & Firmware Specification v1
+- Controller / Bridge / Digital Twin Architecture Plan
+- polisher-control — System Definition
+- polisher-control — Roadmap
+- Polisher Software Suite index and shared schema bundle
+
+Source-truth rule:
+
+- These repo docs are implementation aids.
+- Approved P11 source specs and schemas outrank generated summaries.
+- If anything here conflicts with a source spec, ask Antoine before changing technical direction.
diff --git a/firmware/README.md b/firmware/README.md
new file mode 100644
index 0000000..85a9c1c
--- /dev/null
+++ b/firmware/README.md
@@ -0,0 +1,12 @@
+# Firmware
+
+Teensy 4.x firmware owns the fast loop:
+
+- sensor acquisition;
+- force PID;
+- command output;
+- fast safety/interlocks;
+- host heartbeat supervision;
+- telemetry/event emission.
+
+Use `firmware/teensy/` as the first implementation target.
diff --git a/firmware/teensy/README.md b/firmware/teensy/README.md
new file mode 100644
index 0000000..2170f2b
--- /dev/null
+++ b/firmware/teensy/README.md
@@ -0,0 +1,17 @@
+# Teensy Firmware Scaffold
+
+Suggested starting point: Teensy 4.1 using PlatformIO/Arduino framework.
+
+Core modules to implement:
+
+- protocol framing + CRC;
+- message decode/encode;
+- state machine mirror / safety state;
+- KWR75B-CAN decoder via isolated CAN transceiver;
+- table and arm encoder readers;
+- force PID and actuator output;
+- ODrive command/telemetry path;
+- telemetry packet builder;
+- fast interlocks and watchdogs.
+
+The included `src/main.cpp` is intentionally minimal. Replace with real modules as hardware decisions close.
diff --git a/firmware/teensy/include/polisher_protocol.h b/firmware/teensy/include/polisher_protocol.h
new file mode 100644
index 0000000..0cc6c80
--- /dev/null
+++ b/firmware/teensy/include/polisher_protocol.h
@@ -0,0 +1,31 @@
+#pragma once
+#include <stdint.h>
+
+enum class MessageType : uint8_t {
+    HEARTBEAT = 1,
+    MANUAL_START = 2,
+    SETPOINT = 3,
+    MANUAL_STOP = 4,
+    SEGMENT_START = 5,
+    PAUSE = 6,
+    RESUME = 7,
+    ABORT = 8,
+    ESTOP = 9,
+    ACK = 100,
+    NACK = 101,
+    TELEMETRY = 102,
+    EVENT = 103,
+    SEGMENT_DONE = 104,
+    ABORT_COMPLETE = 105,
+};
+
+enum class NackReason : uint16_t {
+    NONE = 0,
+    BAD_CRC = 1,
+    BAD_VERSION = 2,
+    ILLEGAL_TRANSITION = 3,
+    GEOMETRY_NOT_VALIDATED = 4,
+    SAFETY_INTERLOCK_ACTIVE = 5,
+    UNSUPPORTED_COMMAND = 6,
+    VALUE_OUT_OF_RANGE = 7,
+};
diff --git a/firmware/teensy/include/polisher_telemetry.h b/firmware/teensy/include/polisher_telemetry.h
new file mode 100644
index 0000000..e2bc4fb
--- /dev/null
+++ b/firmware/teensy/include/polisher_telemetry.h
@@ -0,0 +1,28 @@
+#pragma once
+#include <stdint.h>
+
+struct FT_LoadSample {
+    float Fx;
+    float Fy;
+    float Fz;
+    float Mx;
+    float My;
+    float Mz;
+    uint32_t status;
+};
+
+struct TelemetrySample {
+    uint64_t timestamp_us;
+    float table_angle_deg;
+    float arm_angle_deg;
+    float fz_n;
+    float mx;
+    float my;
+    float mz;
+    float spindle_rpm_actual;
+    float table_rpm_actual;
+    float arm_amplitude_deg_derived;
+    float arm_center_deg_derived;
+    uint8_t machine_state;
+    float force_setpoint_n;
+};
diff --git a/firmware/teensy/platformio.ini b/firmware/teensy/platformio.ini
new file mode 100644
index 0000000..f468310
--- /dev/null
+++ b/firmware/teensy/platformio.ini
@@ -0,0 +1,9 @@
+[env:teensy41]
+platform = teensy
+board = teensy41
+framework = arduino
+monitor_speed = 115200
+build_flags =
+    -D POLISHER_CONTROL_PROTOCOL_VERSION=1
+lib_deps =
+    tonton81/FlexCAN_T4
diff --git a/firmware/teensy/src/main.cpp b/firmware/teensy/src/main.cpp
new file mode 100644
index 0000000..618cdef
--- /dev/null
+++ b/firmware/teensy/src/main.cpp
@@ -0,0 +1,30 @@
+#include <Arduino.h>
+#include "polisher_protocol.h"
+#include "polisher_telemetry.h"
+
+static constexpr uint32_t HEARTBEAT_LED_MS = 500;
+uint32_t lastLedToggleMs = 0;
+bool ledState = false;
+
+void setup() {
+    pinMode(LED_BUILTIN, OUTPUT);
+    Serial.begin(115200);
+    // TODO: initialize protocol parser, CAN, encoders, drive I/O, watchdogs.
+}
+
+void loop() {
+    const uint32_t now = millis();
+    if (now - lastLedToggleMs >= HEARTBEAT_LED_MS) {
+        lastLedToggleMs = now;
+        ledState = !ledState;
+        digitalWrite(LED_BUILTIN, ledState ? HIGH : LOW);
+    }
+
+    // TODO v1 loop order:
+    // 1. Read host frames and validate CRC/version.
+    // 2. Read KWR75B-CAN and encoder inputs.
+    // 3. Update state/safety/watchdogs.
+    // 4. Compute setpoint ramp and force PID.
+    // 5. Apply actuator/drive outputs.
+    // 6. Emit telemetry >=100 Hz and events on transitions/faults.
+}
diff --git a/host/README.md b/host/README.md
new file mode 100644
index 0000000..85da3f2
--- /dev/null
+++ b/host/README.md
@@ -0,0 +1,14 @@
+# Host Controller
+
+Python scaffold for the Raspberry Pi / host-side controller.
+
+Host responsibilities:
+- state machine orchestration;
+- geometric gate;
+- manual-mode UI integration;
+- serial/protocol session with Teensy;
+- controller-job validation;
+- telemetry capture;
+- logs, manifests, hashes, and `/data/status.json`.
+
+This package is intentionally small for now. Add real hardware adapters behind interfaces and keep state-machine/contract tests fast.
diff --git a/host/polisher_control/__init__.py b/host/polisher_control/__init__.py
new file mode 100644
index 0000000..3c95f9f
--- /dev/null
+++ b/host/polisher_control/__init__.py
@@ -0,0 +1,3 @@
+"""Host-side scaffold for Fullum polisher-control."""
+
+__version__ = "0.1.0"
diff --git a/host/polisher_control/adapters/.gitkeep b/host/polisher_control/adapters/.gitkeep
new file mode 100644
index 0000000..e69de29
diff --git a/host/polisher_control/contracts.py b/host/polisher_control/contracts.py
new file mode 100644
index 0000000..784220f
--- /dev/null
+++ b/host/polisher_control/contracts.py
@@ -0,0 +1,6 @@
+CONTROLLER_SCHEMA_VERSION = "controller-job.v1"
+RUN_LOG_SCHEMA_VERSION = "run-log.v1"
+MANUAL_SESSION_SCHEMA_VERSION = "manual-session-log.v1"
+MACHINE_CAPABILITIES_SCHEMA_VERSION = "machine-capabilities.v1"
+MACHINE_ID = "fullum-alpha"
+CONTROLLER_VERSION_PREFIX = "polisher-control/"
diff --git a/host/polisher_control/data_layout.py b/host/polisher_control/data_layout.py
new file mode 100644
index 0000000..00035ed
--- /dev/null
+++ b/host/polisher_control/data_layout.py
@@ -0,0 +1,17 @@
+from pathlib import Path
+
+
+def manual_session_dir(data_root: Path, session_id: str) -> Path:
+    return data_root / "manual" / session_id
+
+
+def run_dir(data_root: Path, run_id: str) -> Path:
+    return data_root / "runs" / run_id
+
+
+def expected_manual_files(session_id: str) -> list[str]:
+    return [
+        "manual-session-log.v1.json",
+        "telemetry.csv",
+        "manifest.json",
+    ]
diff --git a/host/polisher_control/protocol.py b/host/polisher_control/protocol.py
new file mode 100644
index 0000000..bd72bb4
--- /dev/null
+++ b/host/polisher_control/protocol.py
@@ -0,0 +1,30 @@
+from enum import IntEnum
+
+
+class MessageType(IntEnum):
+    HEARTBEAT = 1
+    MANUAL_START = 2
+    SETPOINT = 3
+    MANUAL_STOP = 4
+    SEGMENT_START = 5
+    PAUSE = 6
+    RESUME = 7
+    ABORT = 8
+    ESTOP = 9
+    ACK = 100
+    NACK = 101
+    TELEMETRY = 102
+    EVENT = 103
+    SEGMENT_DONE = 104
+    ABORT_COMPLETE = 105
+
+
+class NackReason(IntEnum):
+    NONE = 0
+    BAD_CRC = 1
+    BAD_VERSION = 2
+    ILLEGAL_TRANSITION = 3
+    GEOMETRY_NOT_VALIDATED = 4
+    SAFETY_INTERLOCK_ACTIVE = 5
+    UNSUPPORTED_COMMAND = 6
+    VALUE_OUT_OF_RANGE = 7
diff --git a/host/polisher_control/state_machine.py b/host/polisher_control/state_machine.py
new file mode 100644
index 0000000..2c45783
--- /dev/null
+++ b/host/polisher_control/state_machine.py
@@ -0,0 +1,65 @@
+from __future__ import annotations
+
+from dataclasses import dataclass
+from enum import StrEnum
+
+
+class MachineState(StrEnum):
+    IDLE = "IDLE"
+    JOB_LOADED = "JOB_LOADED"
+    READY = "READY"
+    RUNNING = "RUNNING"
+    PAUSED = "PAUSED"
+    ABORTING = "ABORTING"
+    COMPLETED = "COMPLETED"
+    ABORTED = "ABORTED"
+    FAULTED = "FAULTED"
+    MANUAL = "MANUAL"
+
+
+TRANSITIONS: dict[tuple[MachineState, str], MachineState] = {
+    (MachineState.IDLE, "load_job"): MachineState.JOB_LOADED,
+    (MachineState.IDLE, "enter_manual"): MachineState.MANUAL,
+    (MachineState.JOB_LOADED, "operator_acknowledge"): MachineState.READY,
+    (MachineState.JOB_LOADED, "unload_job"): MachineState.IDLE,
+    (MachineState.READY, "start"): MachineState.RUNNING,
+    (MachineState.RUNNING, "pause"): MachineState.PAUSED,
+    (MachineState.RUNNING, "segment_complete"): MachineState.RUNNING,
+    (MachineState.RUNNING, "all_segments_complete"): MachineState.COMPLETED,
+    (MachineState.RUNNING, "abort"): MachineState.ABORTING,
+    (MachineState.RUNNING, "fault"): MachineState.FAULTED,
+    (MachineState.PAUSED, "resume"): MachineState.RUNNING,
+    (MachineState.PAUSED, "abort"): MachineState.ABORTING,
+    (MachineState.MANUAL, "exit_manual"): MachineState.IDLE,
+    (MachineState.MANUAL, "fault"): MachineState.FAULTED,
+    (MachineState.ABORTING, "abort_complete"): MachineState.ABORTED,
+    (MachineState.COMPLETED, "reset"): MachineState.IDLE,
+    (MachineState.ABORTED, "reset"): MachineState.IDLE,
+    (MachineState.FAULTED, "reset"): MachineState.IDLE,
+}
+
+
+class IllegalTransitionError(RuntimeError):
+    pass
+
+
+@dataclass
+class TransitionEvent:
+    from_state: MachineState
+    trigger: str
+    to_state: MachineState
+
+
+class StateMachine:
+    def __init__(self, initial: MachineState = MachineState.IDLE) -> None:
+        self.state = initial
+        self.events: list[TransitionEvent] = []
+
+    def trigger(self, name: str) -> MachineState:
+        key = (self.state, name)
+        if key not in TRANSITIONS:
+            raise IllegalTransitionError(f"Illegal transition: {self.state} + {name}")
+        previous = self.state
+        self.state = TRANSITIONS[key]
+        self.events.append(TransitionEvent(previous, name, self.state))
+        return self.state
diff --git a/host/polisher_control/telemetry_channels.py b/host/polisher_control/telemetry_channels.py
new file mode 100644
index 0000000..cd9e7b9
--- /dev/null
+++ b/host/polisher_control/telemetry_channels.py
@@ -0,0 +1,39 @@
+CORE_CHANNELS = [
+    "timestamp_us",
+    "table_angle_deg",
+    "arm_angle_deg",
+    "fz_n",
+    "mx",
+    "my",
+    "mz",
+    "spindle_rpm_actual",
+    "table_rpm_actual",
+    "arm_amplitude_deg_derived",
+    "arm_center_deg_derived",
+    "machine_state",
+    "force_setpoint_n",
+]
+
+RECOMMENDED_CHANNELS = [
+    "fx_n",
+    "fy_n",
+    "ft_status",
+    "z_servo_iq_v",
+    "z_brake_engaged",
+    "spindle_drive_state",
+    "spindle_drive_error",
+    "spindle_bus_voltage_v",
+    "spindle_iq_a",
+    "spindle_motor_temp_c",
+    "arm_angle_linearized_deg",
+    "table_rpm_setpoint",
+    "spindle_rpm_setpoint",
+    "force_actuator_cmd",
+    "estop_active",
+    "interlock_state",
+    "mode",
+    "fz_raw_n",
+    "fz_contact_n",
+]
+
+CSV_HEADER = CORE_CHANNELS
diff --git a/pyproject.toml b/pyproject.toml
new file mode 100644
index 0000000..4285686
--- /dev/null
+++ b/pyproject.toml
@@ -0,0 +1,13 @@
+[project]
+name = "polisher-control-host"
+version = "0.1.0"
+description = "Host-side scaffold for Fullum polisher-control"
+requires-python = ">=3.11"
+dependencies = []
+
+[project.optional-dependencies]
+dev = ["pytest>=8", "jsonschema>=4"]
+
+[tool.pytest.ini_options]
+testpaths = ["tests"]
+pythonpath = ["host"]
diff --git a/scripts/print_tree.py b/scripts/print_tree.py
new file mode 100644
index 0000000..9ba023e
--- /dev/null
+++ b/scripts/print_tree.py
@@ -0,0 +1,11 @@
+#!/usr/bin/env python3
+from pathlib import Path
+
+ROOT = Path(__file__).resolve().parents[1]
+for path in sorted(ROOT.rglob("*")):
+    if ".git" in path.parts or "__pycache__" in path.parts:
+        continue
+    rel = path.relative_to(ROOT)
+    if len(rel.parts) > 4:
+        continue
+    print(rel)
diff --git a/scripts/validate_json.py b/scripts/validate_json.py
new file mode 100644
index 0000000..6a0451e
--- /dev/null
+++ b/scripts/validate_json.py
@@ -0,0 +1,27 @@
+#!/usr/bin/env python3
+from __future__ import annotations
+
+import json
+from pathlib import Path
+
+ROOT = Path(__file__).resolve().parents[1]
+
+
+def main() -> int:
+    errors = 0
+    for path in sorted(ROOT.rglob("*.json")):
+        if ".git" in path.parts:
+            continue
+        try:
+            json.loads(path.read_text(encoding="utf-8"))
+        except Exception as exc:
+            print(f"JSON ERROR {path.relative_to(ROOT)}: {exc}")
+            errors += 1
+    if errors:
+        return 1
+    print("OK: all JSON files parse")
+    return 0
+
+
+if __name__ == "__main__":
+    raise SystemExit(main())
diff --git a/shared/machine/fullum-alpha.capabilities.v1.json b/shared/machine/fullum-alpha.capabilities.v1.json
new file mode 100644
index 0000000..2a37f75
--- /dev/null
+++ b/shared/machine/fullum-alpha.capabilities.v1.json
@@ -0,0 +1,130 @@
+{
+  "schema_version": "machine-capabilities.v1",
+  "machine_id": "fullum-alpha",
+  "machine_family": "swing-arm",
+  "machine_name": "Fullum swing-arm polisher",
+  "controller_version": "polisher-control/0.1.0",
+  "supported_motion_families": [
+    "swing-arm-rosette"
+  ],
+  "force_range_n": [
+    0,
+    80
+  ],
+  "table_rpm_range": [
+    0,
+    5.0
+  ],
+  "spindle_rpm_range": [
+    0,
+    80
+  ],
+  "cam_amplitude_range_deg": [
+    0,
+    45
+  ],
+  "cam_offset_range_deg": [
+    -30,
+    30
+  ],
+  "force_modulation": {
+    "supported": true,
+    "max_harmonics": 3,
+    "max_amplitude_n": 20.0,
+    "notes": "Angle-synchronized force modulation from live table encoder angle; validate during commissioning."
+  },
+  "supported_dither_profiles": [
+    "none",
+    "default"
+  ],
+  "segment_duration_limits": {
+    "min_s": 10,
+    "max_s": 7200
+  },
+  "pause_resume_support": true,
+  "telemetry_channels": [
+    {
+      "name": "timestamp_us",
+      "unit": "see docs/05-telemetry-channel-spec-v1.md",
+      "sample_rate_hz": 100
+    },
+    {
+      "name": "table_angle_deg",
+      "unit": "see docs/05-telemetry-channel-spec-v1.md",
+      "sample_rate_hz": 100
+    },
+    {
+      "name": "arm_angle_deg",
+      "unit": "see docs/05-telemetry-channel-spec-v1.md",
+      "sample_rate_hz": 100
+    },
+    {
+      "name": "fz_n",
+      "unit": "see docs/05-telemetry-channel-spec-v1.md",
+      "sample_rate_hz": 100
+    },
+    {
+      "name": "mx",
+      "unit": "see docs/05-telemetry-channel-spec-v1.md",
+      "sample_rate_hz": 100
+    },
+    {
+      "name": "my",
+      "unit": "see docs/05-telemetry-channel-spec-v1.md",
+      "sample_rate_hz": 100
+    },
+    {
+      "name": "mz",
+      "unit": "see docs/05-telemetry-channel-spec-v1.md",
+      "sample_rate_hz": 100
+    },
+    {
+      "name": "spindle_rpm_actual",
+      "unit": "see docs/05-telemetry-channel-spec-v1.md",
+      "sample_rate_hz": 100
+    },
+    {
+      "name": "table_rpm_actual",
+      "unit": "see docs/05-telemetry-channel-spec-v1.md",
+      "sample_rate_hz": 100
+    },
+    {
+      "name": "arm_amplitude_deg_derived",
+      "unit": "see docs/05-telemetry-channel-spec-v1.md",
+      "sample_rate_hz": 100
+    },
+    {
+      "name": "arm_center_deg_derived",
+      "unit": "see docs/05-telemetry-channel-spec-v1.md",
+      "sample_rate_hz": 100
+    },
+    {
+      "name": "machine_state",
+      "unit": "see docs/05-telemetry-channel-spec-v1.md",
+      "sample_rate_hz": 100
+    },
+    {
+      "name": "force_setpoint_n",
+      "unit": "see docs/05-telemetry-channel-spec-v1.md",
+      "sample_rate_hz": 100
+    }
+  ],
+  "safety_limits": {
+    "max_force_n": 80,
+    "max_table_rpm": 5.0,
+    "max_spindle_rpm": 80,
+    "notes": "Initial source-aligned limits; final hardware commissioning must verify."
+  },
+  "known_constraints": [
+    "Manual mode is the first production target.",
+    "No powered Zero-G/admittance mode in v1.",
+    "Oscillation amplitude/center are operator-entered configuration in v1, not actuated cam commands.",
+    "Controller rejects unknown controller-job fields rather than silently ignoring them."
+  ],
+  "unknowns": [
+    "Exact KWR75B-CAN frame map, scaling, status bits, and update rate.",
+    "Final ODrive runtime interface and command scaling.",
+    "Final SV2A-2150 torque/current command scaling and Iq monitor mapping.",
+    "Final safety relay model and wiring details."
+  ]
+}
diff --git a/shared/protocol/.gitkeep b/shared/protocol/.gitkeep
new file mode 100644
index 0000000..e69de29
diff --git a/shared/schemas/README.md b/shared/schemas/README.md
new file mode 100644
index 0000000..00e8205
--- /dev/null
+++ b/shared/schemas/README.md
@@ -0,0 +1,11 @@
+# Shared Schemas
+
+Mirrored from the current Polisher Software Suite schema bundle for implementation alignment.
+
+Important:
+- `controller-job.v1` is what this controller accepts from `polisher-post`.
+- `job.v1` is upstream planning input and must be rejected by `polisher-control`.
+- `run-log.v1` is emitted by `polisher-control` after program execution.
+- `manual-session-log.v1` is currently documented in repo docs/spec; formal schema can be added when Antoine locks it.
+
+Do not rename fields locally without coordinating with Antoine because downstream tools depend on stable names.
diff --git a/shared/schemas/controller-job.schema.json b/shared/schemas/controller-job.schema.json
new file mode 100644
index 0000000..3ee7c85
--- /dev/null
+++ b/shared/schemas/controller-job.schema.json
@@ -0,0 +1,117 @@
+{
+  "$schema": "https://json-schema.org/draft/2020-12/schema",
+  "$id": "https://polisher-suite.local/schemas/controller-job.schema.json",
+  "title": "Controller Job Package",
+  "description": "Translated execution package produced by polisher-post for polisher-control. Represents translated truth.",
+  "type": "object",
+  "required": [
+    "schema_version",
+    "controller_job_id",
+    "job_id",
+    "machine_id",
+    "machine_capabilities_ref",
+    "controller_version",
+    "translated_at",
+    "translated_by",
+    "segments",
+    "translation_losses"
+  ],
+  "properties": {
+    "schema_version": {
+      "type": "string",
+      "const": "controller-job.v1"
+    },
+    "controller_job_id": {
+      "type": "string",
+      "description": "Stable unique identifier for this translated package."
+    },
+    "job_id": {
+      "type": "string",
+      "description": "Back-reference to the source planning job."
+    },
+    "machine_id": {
+      "type": "string",
+      "description": "Target machine identifier."
+    },
+    "machine_capabilities_ref": {
+      "type": "string",
+      "description": "Reference to the machine-capabilities document used for translation."
+    },
+    "controller_version": {
+      "type": "string",
+      "description": "Target controller software version."
+    },
+    "translated_at": {
+      "type": "string",
+      "format": "date-time"
+    },
+    "translated_by": {
+      "type": "string",
+      "description": "polisher-post version that performed the translation."
+    },
+    "translation_notes": {
+      "type": "string",
+      "description": "Summary of constraints applied during translation."
+    },
+    "segments": {
+      "type": "array",
+      "minItems": 1,
+      "items": {
+        "$ref": "#/$defs/segment"
+      }
+    },
+    "translation_losses": {
+      "type": "array",
+      "description": "Explicit record of every constraint, clip, or approximation applied.",
+      "items": {
+        "type": "object",
+        "required": ["source_pass_id", "field", "description"],
+        "properties": {
+          "source_pass_id": { "type": "string" },
+          "field": { "type": "string" },
+          "planned_value": {},
+          "translated_value": {},
+          "description": { "type": "string" }
+        }
+      }
+    }
+  },
+  "$defs": {
+    "segment": {
+      "type": "object",
+      "required": [
+        "segment_id",
+        "sequence_index",
+        "source_pass_id",
+        "duration_s",
+        "commanded_force_n",
+        "commanded_table_rpm",
+        "commanded_spindle_rpm"
+      ],
+      "properties": {
+        "segment_id": { "type": "string" },
+        "sequence_index": { "type": "integer", "minimum": 1 },
+        "source_pass_id": {
+          "type": "string",
+          "description": "Back-reference to the planning pass this segment came from."
+        },
+        "duration_s": { "type": "number", "minimum": 0 },
+        "commanded_force_n": { "type": "number", "minimum": 0 },
+        "commanded_table_rpm": { "type": "number", "minimum": 0 },
+        "commanded_spindle_rpm": { "type": "number", "minimum": 0 },
+        "commanded_cam_amplitude_deg": { "type": "number" },
+        "commanded_cam_offset_deg": { "type": "number" },
+        "force_modulation": {
+          "type": "object",
+          "properties": {
+            "harmonic": { "type": "integer" },
+            "amplitude_n": { "type": "number" },
+            "phase_deg": { "type": "number" }
+          }
+        },
+        "dither_profile": { "type": "string" },
+        "notes": { "type": "string" }
+      }
+    }
+  }
+}
diff --git a/shared/schemas/examples/controller-job.example.json b/shared/schemas/examples/controller-job.example.json
new file mode 100644
index 0000000..dff3f0d
--- /dev/null
+++ b/shared/schemas/examples/controller-job.example.json
@@ -0,0 +1,32 @@
+{
+  "schema_version": "controller-job.v1",
+  "controller_job_id": "cjob-2026-07-001",
+  "job_id": "job-2026-07-001",
+  "machine_id": "fullum-alpha",
+  "machine_capabilities_ref": "machine-capabilities-fullum-alpha-v1",
+  "controller_version": "polisher-control/0.1.0",
+  "translated_at": "2026-07-15T10:15:00Z",
+  "translated_by": "polisher-post/0.1.0",
+  "translation_notes": "All setpoints within machine limits. No clipping required.",
+  "segments": [
+    {
+      "segment_id": "seg-01",
+      "sequence_index": 1,
+      "source_pass_id": "pass-01",
+      "duration_s": 1200,
+      "commanded_force_n": 45.0,
+      "commanded_table_rpm": 4.0,
+      "commanded_spindle_rpm": 40.0,
+      "commanded_cam_amplitude_deg": 31.3,
+      "commanded_cam_offset_deg": 0.0,
+      "force_modulation": {
+        "harmonic": 2,
+        "amplitude_n": 5.0,
+        "phase_deg": 37.2
+      },
+      "dither_profile": "none",
+      "notes": "Direct translation — no segmentation needed for 1200s duration."
+    }
+  ],
+  "translation_losses": []
+}
diff --git a/shared/schemas/examples/job.example.json b/shared/schemas/examples/job.example.json
new file mode 100644
index 0000000..beaa01f
--- /dev/null
+++ b/shared/schemas/examples/job.example.json
@@ -0,0 +1,71 @@
+{
+  "schema_version": "job.v1",
+  "job_id": "job-2026-07-001",
+  "mirror_id": "gigabit-m1",
+  "machine_family": "swing-arm",
+  "source_map_id": "ifg-2026-07-14-pre",
+  "target_id": "target-m1-final-figure",
+  "created_at": "2026-07-15T09:30:00Z",
+  "created_by": "antoine",
+  "planner_version": "polisher-sim/0.6.0",
+  "calibration_state_ref": "cal-2026-06-fullum-alpha",
+  "strategy_summary": {
+    "intent": "Reduce dominant astigmatism using m=2 force modulation on 280mm tool",
+    "confidence": 0.72,
+    "notes": "Single-pass conservative correction. Dither disabled for baseline comparison."
+  },
+  "passes": [
+    {
+      "pass_id": "pass-01",
+      "sequence_index": 1,
+      "objective": "Astigmatism reduction via force modulation",
+      "preset_name": "figuring_standard",
+      "duration_s": 1200,
+      "force_n": 45.0,
+      "table_rpm": 4.0,
+      "spindle_rpm": 40.0,
+      "motion_family": "swing-arm-rosette",
+      "motion_params": {
+        "cam_amplitude_deg": 31.3,
+        "cam_offset_deg": 0.0,
+        "osc_hz": 0.25
+      },
+      "dither_profile": "none",
+      "force_modulation": {
+        "harmonic": 2,
+        "amplitude_n": 5.0,
+        "phase_deg": 37.2
+      },
+      "notes": "Phase derived from Zernike fit of pre-polish interferogram."
+    }
+  ],
+  "predicted_outcome": {
+    "removal_rms_nm": 18.5,
+    "removal_pv_nm": 62.0,
+    "residual_zernikes": {
+      "Z4": -2.1,
+      "Z5": 12.3,
+      "Z6": -8.7,
+      "Z7": 15.1,
+      "Z8": -3.2,
+      "Z9": 4.5,
+      "Z10": -2.8
+    }
+  },
+  "uncertainty": {
+    "removal_rms_nm_range": [14.0, 24.0],
+    "notes": "Uncertainty dominated by Preston coefficient calibration spread."
+  },
+  "attachments": [
+    {
+      "filename": "predicted_removal.csv",
+      "role": "predicted_removal_map",
+      "description": "2D removal map in nm, 256x256 grid"
+    },
+    {
+      "filename": "pre_surface.csv",
+      "role": "input_surface_map",
+      "description": "Pre-polish surface map used as planning input"
+    }
+  ]
+}
diff --git a/shared/schemas/examples/machine-capabilities.example.json b/shared/schemas/examples/machine-capabilities.example.json
new file mode 100644
index 0000000..892a375
--- /dev/null
+++ b/shared/schemas/examples/machine-capabilities.example.json
@@ -0,0 +1,51 @@
+{
+  "schema_version": "machine-capabilities.v1",
+  "machine_id": "fullum-alpha",
+  "machine_family": "swing-arm",
+  "machine_name": "Fullum Swing-Arm Polisher",
+  "controller_version": "polisher-control/0.1.0",
+  "last_verified": "2026-06-01T00:00:00Z",
+  "supported_motion_families": ["swing-arm-rosette"],
+  "force_range_n": [5, 200],
+  "table_rpm_range": [0.5, 10.0],
+  "spindle_rpm_range": [10, 120],
+  "cam_amplitude_range_deg": [1.0, 31.3],
+  "cam_offset_range_deg": [-30.0, 30.0],
+  "force_modulation": {
+    "supported": true,
+    "max_harmonics": 3,
+    "max_amplitude_n": 24.0,
+    "notes": "m=2 astigmatism and m=3 trefoil are proven channels. m=1 coma is unreliable (score 0.09)."
+  },
+  "supported_dither_profiles": ["none", "default"],
+  "segment_duration_limits": {
+    "min_s": 30,
+    "max_s": 7200
+  },
+  "pause_resume_support": true,
+  "telemetry_channels": [
+    { "name": "table_rpm", "unit": "RPM", "sample_rate_hz": 100 },
+    { "name": "spindle_rpm", "unit": "RPM", "sample_rate_hz": 100 },
+    { "name": "force_n", "unit": "N", "sample_rate_hz": 100 },
+    { "name": "arm_angle_deg", "unit": "degrees", "sample_rate_hz": 100 },
+    { "name": "table_angle_deg", "unit": "degrees", "sample_rate_hz": 100 },
+    { "name": "timestamp_ms", "unit": "ms", "sample_rate_hz": 100 }
+  ],
+  "safety_limits": {
+    "max_force_n": 200,
+    "max_table_rpm": 10.0,
+    "max_spindle_rpm": 120,
+    "notes": "Force hard-limited by load cell interlock. RPM limits are VFD/servo configured."
+  },
+  "known_constraints": [
+    "Cam amplitude is not servo-programmable — must be set mechanically before run.",
+    "Force modulation bandwidth limited to ~5 Hz by actuator response.",
+    "Table encoder is absolute but may have 1-2 count jitter.",
+    "Serial interface to Teensy limits command update rate to ~50 Hz effective."
+  ],
+  "unknowns": [
+    "Exact force modulation phase accuracy at m=3 harmonic — not yet validated on hardware.",
+    "Thermal drift effect on force sensor over runs longer than 1 hour.",
+    "Arm pivot play magnitude under varying force loads."
+  ]
+}
diff --git a/shared/schemas/examples/manifest.example.json b/shared/schemas/examples/manifest.example.json
new file mode 100644
index 0000000..71ee7f6
--- /dev/null
+++ b/shared/schemas/examples/manifest.example.json
@@ -0,0 +1,43 @@
+{
+  "schema_version": "manifest.v1",
+  "manifest_id": "manifest-job-2026-07-001",
+  "bundle_type": "job",
+  "source_id": "job-2026-07-001",
+  "created_at": "2026-07-15T09:31:00Z",
+  "created_by": "polisher-sim/0.6.0",
+  "entries": [
+    {
+      "filename": "job.json",
+      "role": "primary",
+      "hash_sha256": "a1b2c3d4e5f6a1b2c3d4e5f6a1b2c3d4e5f6a1b2c3d4e5f6a1b2c3d4e5f6a1b2",
+      "size_bytes": 2007,
+      "content_type": "application/json",
+      "description": "Frozen planning job package."
+    },
+    {
+      "filename": "predicted_removal.csv",
+      "role": "attachment",
+      "hash_sha256": "b2c3d4e5f6a1b2c3d4e5f6a1b2c3d4e5f6a1b2c3d4e5f6a1b2c3d4e5f6a1b2c3",
+      "size_bytes": 524288,
+      "content_type": "text/csv",
+      "description": "Predicted removal map, 256x256 grid, nm."
+    },
+    {
+      "filename": "pre_surface.csv",
+      "role": "attachment",
+      "hash_sha256": "c3d4e5f6a1b2c3d4e5f6a1b2c3d4e5f6a1b2c3d4e5f6a1b2c3d4e5f6a1b2c3d4",
+      "size_bytes": 524288,
+      "content_type": "text/csv",
+      "description": "Pre-polish surface map used as planning input."
+    },
+    {
+      "filename": "manifest.json",
+      "role": "manifest",
+      "hash_sha256": "0000000000000000000000000000000000000000000000000000000000000000",
+      "size_bytes": 0,
+      "content_type": "application/json",
+      "description": "This manifest (self-reference, hash zeroed by convention)."
+    }
+  ],
+  "notes": "July proving scenario — single-pass astigmatism correction job bundle."
+}
diff --git a/shared/schemas/examples/run-log.example.json b/shared/schemas/examples/run-log.example.json
new file mode 100644
index 0000000..447682b
--- /dev/null
+++ b/shared/schemas/examples/run-log.example.json
@@ -0,0 +1,64 @@
+{
+  "schema_version": "run-log.v1",
+  "run_id": "run-2026-07-001",
+  "job_id": "job-2026-07-001",
+  "controller_job_id": "cjob-2026-07-001",
+  "controller_version": "polisher-control/0.1.0",
+  "machine_id": "fullum-alpha",
+  "started_at": "2026-07-17T14:00:00Z",
+  "ended_at": "2026-07-17T14:20:35Z",
+  "result_state": "completed",
+  "segments": [
+    {
+      "segment_id": "seg-01",
+      "source_pass_id": "pass-01",
+      "commanded_duration_s": 1200,
+      "actual_duration_s": 1203.5,
+      "result_state": "completed",
+      "commanded": {
+        "force_n": 45.0,
+        "table_rpm": 4.0,
+        "spindle_rpm": 40.0,
+        "cam_amplitude_deg": 31.3,
+        "cam_offset_deg": 0.0
+      },
+      "actual": {
+        "force_n_mean": 44.7,
+        "force_n_min": 41.2,
+        "force_n_max": 49.8,
+        "table_rpm_mean": 3.98,
+        "spindle_rpm_mean": 39.9
+      },
+      "pause_windows": [],
+      "anomaly_flags": [],
+      "notes": "Clean run. Minor force excursion at arm reversal points."
+    }
+  ],
+  "commanded_summary": {
+    "force_n": 45.0,
+    "table_rpm": 4.0,
+    "spindle_rpm": 40.0
+  },
+  "actual_summary": {
+    "force_n_mean": 44.7,
+    "force_n_min": 41.2,
+    "force_n_max": 49.8,
+    "table_rpm_mean": 3.98,
+    "spindle_rpm_mean": 39.9
+  },
+  "alarms": [],
+  "events": [
+    {
+      "timestamp": "2026-07-17T14:00:00Z",
+      "type": "run_started",
+      "detail": "Operator acknowledged start."
+    },
+    {
+      "timestamp": "2026-07-17T14:20:35Z",
+      "type": "run_completed",
+      "detail": "All segments completed normally."
+    }
+  ],
+  "telemetry_ref": "telemetry-run-2026-07-001.csv",
+  "operator_notes": "Smooth run. No intervention needed."
+}
diff --git a/shared/schemas/job.schema.json b/shared/schemas/job.schema.json
new file mode 100644
index 0000000..d707419
--- /dev/null
+++ b/shared/schemas/job.schema.json
@@ -0,0 +1,158 @@
+{
+  "$schema": "https://json-schema.org/draft/2020-12/schema",
+  "$id": "https://polisher-suite.local/schemas/job.schema.json",
+  "title": "Polisher Job Package",
+  "description": "Frozen planning artifact emitted by polisher-sim. Represents planning truth.",
+  "type": "object",
+  "required": [
+    "schema_version",
+    "job_id",
+    "mirror_id",
+    "machine_family",
+    "planner_version",
+    "created_at",
+    "strategy_summary",
+    "passes"
+  ],
+  "properties": {
+    "schema_version": {
+      "type": "string",
+      "const": "job.v1"
+    },
+    "job_id": {
+      "type": "string",
+      "description": "Stable unique identifier for this job."
+    },
+    "mirror_id": {
+      "type": "string"
+    },
+    "machine_family": {
+      "type": "string",
+      "description": "Target machine family (e.g. swing-arm)."
+    },
+    "source_map_id": {
+      "type": "string",
+      "description": "Reference to the input surface measurement."
+    },
+    "target_id": {
+      "type": "string",
+      "description": "Reference to the target surface specification."
+    },
+    "created_at": {
+      "type": "string",
+      "format": "date-time"
+    },
+    "created_by": {
+      "type": "string"
+    },
+    "planner_version": {
+      "type": "string",
+      "description": "Software version of polisher-sim that generated this job."
+    },
+    "calibration_state_ref": {
+      "type": "string",
+      "description": "Reference to the calibration state used during planning."
+    },
+    "strategy_summary": {
+      "type": "object",
+      "required": ["intent"],
+      "properties": {
+        "intent": { "type": "string" },
+        "confidence": {
+          "type": "number",
+          "minimum": 0,
+          "maximum": 1
+        },
+        "notes": { "type": "string" }
+      }
+    },
+    "passes": {
+      "type": "array",
+      "minItems": 1,
+      "items": {
+        "$ref": "#/$defs/pass"
+      }
+    },
+    "predicted_outcome": {
+      "type": "object",
+      "description": "Summary of predicted post-polish surface state.",
+      "properties": {
+        "removal_rms_nm": { "type": "number" },
+        "removal_pv_nm": { "type": "number" },
+        "residual_zernikes": {
+          "type": "object",
+          "additionalProperties": { "type": "number" }
+        }
+      }
+    },
+    "uncertainty": {
+      "type": "object",
+      "description": "Planner's uncertainty estimates.",
+      "properties": {
+        "removal_rms_nm_range": {
+          "type": "array",
+          "items": { "type": "number" },
+          "minItems": 2,
+          "maxItems": 2
+        },
+        "notes": { "type": "string" }
+      }
+    },
+    "attachments": {
+      "type": "array",
+      "items": {
+        "type": "object",
+        "required": ["filename", "role"],
+        "properties": {
+          "filename": { "type": "string" },
+          "role": { "type": "string" },
+          "description": { "type": "string" }
+        }
+      }
+    }
+  },
+  "$defs": {
+    "pass": {
+      "type": "object",
+      "required": [
+        "pass_id",
+        "sequence_index",
+        "duration_s",
+        "force_n",
+        "table_rpm",
+        "spindle_rpm",
+        "motion_family"
+      ],
+      "properties": {
+        "pass_id": { "type": "string" },
+        "sequence_index": { "type": "integer", "minimum": 1 },
+        "objective": { "type": "string" },
+        "preset_name": { "type": "string" },
+        "duration_s": { "type": "number", "minimum": 0 },
+        "force_n": { "type": "number", "minimum": 0 },
+        "table_rpm": { "type": "number", "minimum": 0 },
+        "spindle_rpm": { "type": "number", "minimum": 0 },
+        "motion_family": { "type": "string" },
+        "motion_params": {
+          "type": "object",
+          "additionalProperties": true
+        },
+        "zone": { "type": "string" },
+        "dither_profile": { "type": "string" },
+        "force_modulation": {
+          "type": "object",
+          "properties": {
+            "harmonic": { "type": "integer" },
+            "amplitude_n": { "type": "number" },
+            "phase_deg": { "type": "number" }
+          }
+        },
+        "acceptance": {
+          "type": "object",
+          "additionalProperties": true
+        },
+        "notes": { "type": "string" }
+      }
+    }
+  }
+}
diff --git a/shared/schemas/machine-capabilities.schema.json b/shared/schemas/machine-capabilities.schema.json
new file mode 100644
index 0000000..d548cdd
--- /dev/null
+++ b/shared/schemas/machine-capabilities.schema.json
@@ -0,0 +1,135 @@
+{
+  "$schema": "https://json-schema.org/draft/2020-12/schema",
+  "$id": "https://polisher-suite.local/schemas/machine-capabilities.schema.json",
+  "title": "Machine Capabilities",
+  "description": "Conservative declaration of what a machine+controller can safely execute. Unknown capabilities must be explicitly marked rather than assumed.",
+  "type": "object",
+  "required": [
+    "schema_version",
+    "machine_id",
+    "machine_family",
+    "controller_version",
+    "supported_motion_families",
+    "force_range_n",
+    "table_rpm_range",
+    "spindle_rpm_range"
+  ],
+  "properties": {
+    "schema_version": {
+      "type": "string",
+      "const": "machine-capabilities.v1"
+    },
+    "machine_id": {
+      "type": "string"
+    },
+    "machine_family": {
+      "type": "string"
+    },
+    "machine_name": {
+      "type": "string"
+    },
+    "controller_version": {
+      "type": "string"
+    },
+    "last_verified": {
+      "type": "string",
+      "format": "date-time",
+      "description": "When these capabilities were last confirmed on the real machine."
+    },
+    "supported_motion_families": {
+      "type": "array",
+      "items": { "type": "string" },
+      "minItems": 1
+    },
+    "force_range_n": {
+      "$ref": "#/$defs/range_or_unknown"
+    },
+    "table_rpm_range": {
+      "$ref": "#/$defs/range_or_unknown"
+    },
+    "spindle_rpm_range": {
+      "$ref": "#/$defs/range_or_unknown"
+    },
+    "cam_amplitude_range_deg": {
+      "$ref": "#/$defs/range_or_unknown"
+    },
+    "cam_offset_range_deg": {
+      "$ref": "#/$defs/range_or_unknown"
+    },
+    "force_modulation": {
+      "type": "object",
+      "description": "Force modulation capabilities. Omit entirely if unknown.",
+      "properties": {
+        "supported": { "type": "boolean" },
+        "max_harmonics": { "type": "integer" },
+        "max_amplitude_n": { "type": "number" },
+        "notes": { "type": "string" }
+      }
+    },
+    "supported_dither_profiles": {
+      "type": "array",
+      "items": { "type": "string" },
+      "description": "List of dither profile names the controller can handle. Empty = none supported."
+    },
+    "segment_duration_limits": {
+      "type": "object",
+      "properties": {
+        "min_s": { "type": "number" },
+        "max_s": { "type": "number" }
+      }
+    },
+    "pause_resume_support": {
+      "type": "boolean"
+    },
+    "telemetry_channels": {
+      "type": "array",
+      "items": {
+        "type": "object",
+        "required": ["name", "unit"],
+        "properties": {
+          "name": { "type": "string" },
+          "unit": { "type": "string" },
+          "sample_rate_hz": { "type": "number" },
+          "notes": { "type": "string" }
+        }
+      }
+    },
+    "safety_limits": {
+      "type": "object",
+      "description": "Hard safety limits that the controller enforces regardless of job requests.",
+      "properties": {
+        "max_force_n": { "type": "number" },
+        "max_table_rpm": { "type": "number" },
+        "max_spindle_rpm": { "type": "number" },
+        "notes": { "type": "string" }
+      }
+    },
+    "known_constraints": {
+      "type": "array",
+      "items": { "type": "string" },
+      "description": "Free-text list of known limitations, quirks, or warnings."
+    },
+    "unknowns": {
+      "type": "array",
+      "items": { "type": "string" },
+      "description": "Capabilities that have NOT been verified. Explicit unknowns prevent fake certainty."
+    }
+  },
+  "$defs": {
+    "range_or_unknown": {
+      "oneOf": [
+        {
+          "type": "array",
+          "items": { "type": "number" },
+          "minItems": 2,
+          "maxItems": 2,
+          "description": "[min, max] range."
+        },
+        {
+          "type": "string",
+          "const": "unknown"
+        }
+      ]
+    }
+  }
+}
diff --git a/shared/schemas/manifest.schema.json b/shared/schemas/manifest.schema.json
new file mode 100644
index 0000000..83e9e57
--- /dev/null
+++ b/shared/schemas/manifest.schema.json
@@ -0,0 +1,76 @@
+{
+  "$schema": "https://json-schema.org/draft/2020-12/schema",
+  "$id": "https://polisher-suite.local/schemas/manifest.schema.json",
+  "title": "Artifact Bundle Manifest",
+  "description": "Manifest for a portable artifact bundle. Lists all files with hashes for integrity verification.",
+  "type": "object",
+  "required": [
+    "schema_version",
+    "manifest_id",
+    "bundle_type",
+    "created_at",
+    "entries"
+  ],
+  "properties": {
+    "schema_version": {
+      "type": "string",
+      "const": "manifest.v1"
+    },
+    "manifest_id": {
+      "type": "string",
+      "description": "Unique identifier for this manifest."
+    },
+    "bundle_type": {
+      "type": "string",
+      "enum": ["job", "controller-job", "run-log"],
+      "description": "What kind of artifact bundle this manifest describes."
+    },
+    "source_id": {
+      "type": "string",
+      "description": "The primary artifact ID (job_id, controller_job_id, or run_id)."
+    },
+    "created_at": {
+      "type": "string",
+      "format": "date-time"
+    },
+    "created_by": {
+      "type": "string",
+      "description": "Software/version that created this bundle."
+    },
+    "entries": {
+      "type": "array",
+      "minItems": 1,
+      "items": {
+        "type": "object",
+        "required": ["filename", "role", "hash_sha256"],
+        "properties": {
+          "filename": {
+            "type": "string",
+            "description": "Relative path within the bundle."
+          },
+          "role": {
+            "type": "string",
+            "description": "Semantic role: primary, attachment, telemetry, report, etc."
+          },
+          "hash_sha256": {
+            "type": "string",
+            "pattern": "^[a-f0-9]{64}$"
+          },
+          "size_bytes": {
+            "type": "integer",
+            "minimum": 0
+          },
+          "content_type": {
+            "type": "string"
+          },
+          "description": {
+            "type": "string"
+          }
+        }
+      }
+    },
+    "notes": {
+      "type": "string"
+    }
+  }
+}
diff --git a/shared/schemas/run-log.schema.json b/shared/schemas/run-log.schema.json
new file mode 100644
index 0000000..4bb48a8
--- /dev/null
+++ b/shared/schemas/run-log.schema.json
@@ -0,0 +1,171 @@
+{
+  "$schema": "https://json-schema.org/draft/2020-12/schema",
+  "$id": "https://polisher-suite.local/schemas/run-log.schema.json",
+  "title": "Run Log",
+  "description": "Canonical execution record emitted by polisher-control. Represents executed truth.",
+  "type": "object",
+  "required": [
+    "schema_version",
+    "run_id",
+    "job_id",
+    "controller_job_id",
+    "controller_version",
+    "machine_id",
+    "started_at",
+    "ended_at",
+    "result_state",
+    "segments"
+  ],
+  "properties": {
+    "schema_version": {
+      "type": "string",
+      "const": "run-log.v1"
+    },
+    "run_id": {
+      "type": "string",
+      "description": "Stable unique identifier for this execution run."
+    },
+    "job_id": {
+      "type": "string",
+      "description": "Back-reference to the source planning job."
+    },
+    "controller_job_id": {
+      "type": "string",
+      "description": "Back-reference to the translated controller-job package."
+    },
+    "controller_version": {
+      "type": "string"
+    },
+    "machine_id": {
+      "type": "string"
+    },
+    "started_at": {
+      "type": "string",
+      "format": "date-time"
+    },
+    "ended_at": {
+      "type": "string",
+      "format": "date-time"
+    },
+    "result_state": {
+      "type": "string",
+      "enum": ["completed", "completed_with_pause", "aborted", "faulted"]
+    },
+    "segments": {
+      "type": "array",
+      "minItems": 1,
+      "items": {
+        "$ref": "#/$defs/executed_segment"
+      }
+    },
+    "commanded_summary": {
+      "type": "object",
+      "properties": {
+        "force_n": { "type": "number" },
+        "table_rpm": { "type": "number" },
+        "spindle_rpm": { "type": "number" }
+      }
+    },
+    "actual_summary": {
+      "type": "object",
+      "properties": {
+        "force_n_mean": { "type": "number" },
+        "force_n_min": { "type": "number" },
+        "force_n_max": { "type": "number" },
+        "table_rpm_mean": { "type": "number" },
+        "spindle_rpm_mean": { "type": "number" }
+      }
+    },
+    "alarms": {
+      "type": "array",
+      "items": {
+        "type": "object",
+        "required": ["timestamp", "code", "message"],
+        "properties": {
+          "timestamp": { "type": "string", "format": "date-time" },
+          "code": { "type": "string" },
+          "message": { "type": "string" },
+          "severity": { "type": "string", "enum": ["info", "warning", "critical"] }
+        }
+      }
+    },
+    "events": {
+      "type": "array",
+      "items": {
+        "type": "object",
+        "required": ["timestamp", "type"],
+        "properties": {
+          "timestamp": { "type": "string", "format": "date-time" },
+          "type": { "type": "string" },
+          "detail": { "type": "string" }
+        }
+      }
+    },
+    "telemetry_ref": {
+      "type": "string",
+      "description": "Filename or path to the raw telemetry data file."
+    },
+    "operator_notes": {
+      "type": "string"
+    }
+  },
+  "$defs": {
+    "executed_segment": {
+      "type": "object",
+      "required": [
+        "segment_id",
+        "source_pass_id",
+        "commanded_duration_s",
+        "actual_duration_s",
+        "result_state"
+      ],
+      "properties": {
+        "segment_id": { "type": "string" },
+        "source_pass_id": { "type": "string" },
+        "commanded_duration_s": { "type": "number" },
+        "actual_duration_s": { "type": "number" },
+        "result_state": {
+          "type": "string",
+          "enum": ["completed", "completed_with_pause", "aborted", "faulted", "skipped"]
+        },
+        "commanded": {
+          "type": "object",
+          "properties": {
+            "force_n": { "type": "number" },
+            "table_rpm": { "type": "number" },
+            "spindle_rpm": { "type": "number" },
+            "cam_amplitude_deg": { "type": "number" },
+            "cam_offset_deg": { "type": "number" }
+          }
+        },
+        "actual": {
+          "type": "object",
+          "properties": {
+            "force_n_mean": { "type": "number" },
+            "force_n_min": { "type": "number" },
+            "force_n_max": { "type": "number" },
+            "table_rpm_mean": { "type": "number" },
+            "spindle_rpm_mean": { "type": "number" }
+          }
+        },
+        "pause_windows": {
+          "type": "array",
+          "items": {
+            "type": "object",
+            "required": ["paused_at", "resumed_at"],
+            "properties": {
+              "paused_at": { "type": "string", "format": "date-time" },
+              "resumed_at": { "type": "string", "format": "date-time" },
+              "reason": { "type": "string" }
+            }
+          }
+        },
+        "anomaly_flags": {
+          "type": "array",
+          "items": { "type": "string" }
+        },
+        "notes": { "type": "string" }
+      }
+    }
+  }
+}
diff --git a/tests/test_contract_constants.py b/tests/test_contract_constants.py
new file mode 100644
index 0000000..492570e
--- /dev/null
+++ b/tests/test_contract_constants.py
@@ -0,0 +1,16 @@
+from polisher_control.telemetry_channels import CORE_CHANNELS
+from polisher_control.contracts import MACHINE_ID
+
+
+def test_machine_id_is_fullum_alpha():
+    assert MACHINE_ID == "fullum-alpha"
+
+
+def test_core_telemetry_channels_are_stable():
+    assert CORE_CHANNELS[:4] == [
+        "timestamp_us",
+        "table_angle_deg",
+        "arm_angle_deg",
+        "fz_n",
+    ]
+    assert "force_setpoint_n" in CORE_CHANNELS
diff --git a/tests/test_state_machine.py b/tests/test_state_machine.py
new file mode 100644
index 0000000..b4d662d
--- /dev/null
+++ b/tests/test_state_machine.py
@@ -0,0 +1,26 @@
+import pytest
+
+from polisher_control.state_machine import IllegalTransitionError, MachineState, StateMachine
+
+
+def test_manual_mode_path_returns_to_idle():
+    sm = StateMachine()
+    assert sm.trigger("enter_manual") == MachineState.MANUAL
+    assert sm.trigger("exit_manual") == MachineState.IDLE
+
+
+def test_faulted_requires_reset():
+    sm = StateMachine(MachineState.MANUAL)
+    assert sm.trigger("fault") == MachineState.FAULTED
+    with pytest.raises(IllegalTransitionError):
+        sm.trigger("enter_manual")
+    assert sm.trigger("reset") == MachineState.IDLE
+
+
+def test_operator_acknowledge_required_before_running():
+    sm = StateMachine()
+    sm.trigger("load_job")
+    with pytest.raises(IllegalTransitionError):
+        sm.trigger("start")
+    sm.trigger("operator_acknowledge")
+    assert sm.trigger("start") == MachineState.RUNNING