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Train the bounded language model in an external Docker Compose job across two recursive generations - #80
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Reviewer's GuideThis PR adds a production Sequence diagram for external Compose LM recursive generationsequenceDiagram
actor Controller
participant Job as Durable process job
participant Compose as Docker Compose trainer
participant LM as TypeScript LM trainer
participant Gate as Held-out evaluation and promotion
Controller->>Job: reserveProcessJob()
Controller->>Compose: launchComposeTrainer()
Compose->>LM: send training request
LM->>LM: trainLmStep()
LM->>LM: serializeLmCheckpoint()
LM-->>Compose: completion receipt and checkpoint
Compose-->>Controller: staged completion
Controller->>Job: validateProcessCompletion()
Controller->>Gate: evaluate candidate and apply promotion gate
Gate-->>Controller: promote candidate
Controller->>Job: transitionProcessJob()
Controller->>Controller: collect successor with promoted checkpoint
Entity relationship diagram for recursive LM checkpoint lineageerDiagram
GENERATION ||--|| CHECKPOINT : produces
CHECKPOINT ||--o{ COLLECTION : supports
COLLECTION }o--|| CHECKPOINT : collected_by
GENERATION ||--|| PROCESS_JOB : executes
PROCESS_JOB ||--|| COMPLETION_RECEIPT : stages
GENERATION {
int generation
string source_checkpoint_digest
string candidate_checkpoint_digest
float held_out_reward
}
CHECKPOINT {
string digest
int checkpoint_bytes
}
COLLECTION {
string collection_digest
int optimized_tokens
}
PROCESS_JOB {
string id
string state
boolean settled
}
COMPLETION_RECEIPT {
string checkpoint_digest
int peak_memory_bytes
int fit_wall_ms
}
Flow diagram for staged Compose LM recovery and validationflowchart TD
A[Reserved Compose LM job] --> B{Staged completion exists?}
B -- No --> C[Launch isolated container]
B -- Yes --> D[Recover staged artifacts]
C --> E[Validate checkpoint and receipt]
D --> E
E --> F{Evidence valid and within limits?}
F -- No --> G[Refuse promotion and settle reservation]
F -- Yes --> H[Held-out evaluation]
H --> I{Promotion gate passes?}
I -- No --> G
I -- Yes --> J[Promote candidate]
J --> K[Next generation collects from promoted checkpoint]
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Summary by CodeRabbit
WalkthroughThis change adds bounded causal-LM training through external Compose jobs and connects trainer receipts to recursive evaluation and promotion. It also adds LM-specific validation and tests, updates documentation, and records separate recovery-test and timing investigations. ChangesCompose LM Training
Recovery Tests and Timing Investigations
Priority: ➖ Normal Estimated code review effort: 4 (Complex) | ~60 minutes Change: Feature Sequence Diagram(s)sequenceDiagram
participant LoopExecution
participant lmProcessInput
participant executeProcessTrainer
participant launchComposeTrainer
participant ComposeContainer
participant runLmTrainer
LoopExecution->>lmProcessInput: Build LM process input
LoopExecution->>executeProcessTrainer: Execute LM process job
executeProcessTrainer->>launchComposeTrainer: Launch with LM limits
launchComposeTrainer->>ComposeContainer: Start configured Compose job
ComposeContainer->>runLmTrainer: Supply job input
runLmTrainer-->>ComposeContainer: Write checkpoint and completion evidence
ComposeContainer-->>executeProcessTrainer: Return trainer completion
executeProcessTrainer-->>LoopExecution: Return process job
LoopExecution->>LoopExecution: Verify receipt, evaluate, and record promotion state
Merge Risk: 🔵 Low · up to
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| Check name | Status | Explanation |
|---|---|---|
| Docstring Coverage |  |
Docstring coverage is 100.00% which is sufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff. Analyzed 57 functions across 13 files. (17 skipped:… |
| Linked Issues check | |
Check skipped because no linked issues were found for this pull request. |
| Out of Scope Changes check | |
Check skipped because no linked issues were found for this pull request. |
| Title check | |
The title clearly identifies the main change: running bounded language-model training in an external Docker Compose job across recursive generations. |
| Description check | |
The description directly explains the Compose LM adapter, trainer lifecycle, security limits, tests, recovery scenarios, and release-gate results. |
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Inline comments:
Review comments at @.agents/pm/tasks/pm-rl-7c7m.toon:
- Line 23: Update the linked CLI test workflow to isolate PM_PATH from fixture
initialization, or adjust its invocation so a normal linked-test run reaches the
CLI timing assertion; keep the recorded test command and required context
consistent.
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📒 Files selected for processing: 30
.agents/pm/features/pm-rl-whrd.toon.agents/pm/history/pm-rl-7c7m.jsonl.agents/pm/history/pm-rl-8nev.jsonl.agents/pm/history/pm-rl-bi4v.jsonl.agents/pm/history/pm-rl-whrd.jsonl.agents/pm/tasks/pm-rl-7c7m.toon.agents/pm/tasks/pm-rl-8nev.toon.agents/pm/tasks/pm-rl-bi4v.toon.dockerignoreREADME.mdRECURSIVE_TRAINING.mdcompose.tsdocs/lm-adapter.mddocs/process-trainer.mdindex.tslm-trainer.Dockerfilelm.tsloop.tspackage.jsonprocess-lm-trainer.tsprocess-lm.tsprocess.tstest/compose.test.tstest/decision-recovery.test.tstest/durable-loop.test.tstest/fixtures/compose.Dockerfiletest/fixtures/decision-controller.tstest/fixtures/lm-compose-trainer.tstest/fixtures/lm-compose.Dockerfiletest/lm-compose.test.ts
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The bounded causal LM previously fit inside the controller. This adds
compose-lmso recursive generations fit in external Compose containers, while collection, held-out evaluation and promotion retain the existing controller and gate.The adapter reuses durable job identity, owner fencing, atomic resource reservations, NDJSON, staged completion validation, cancellation, recovery and settlement. The LM validator binds canonical tensors, source/collection identity, fit evidence, peak memory and target-token use. Image, memory, CPU and fit allowances are declared before launch and bound into programme/job identity. Containers use a digest-pinned Node base, a non-root user, a read-only root, dropped capabilities, no network or ports, a PID limit, and kernel memory/swap and CPU ceilings. Only job staging is mounted; request/config mounts are read-only. Held-out examples and tracker access stay outside the trainer.
The real-container suite covers two promoted generations and successor collection, SIGKILL after staged completion without retraining or double charge, cancellation, corrupt checkpoints, real memory/time refusals, and two-controller single-launch accounting. The LM adapter contract contains the synthetic model/data declarations and measured lineage. Storage remains watchdog-based rather than a hard disk quota.
Review round 1 tightens the bandit contention test's synchronization. The original fixture paused after collection, before a process reservation existed. It now pauses after the durable
runningreservation write. The test observes exactly one unsettled one-step reservation before permitting trainer startup, then verifies the same settled job, one history creation, one launch and idempotent resume. Expected controller refusals include their diagnostic message, and test cleanup targets the exact owned job even on assertion failure. No production lease, reservation, launch accounting, allowance or timeout was changed.The original Node 26 CI job used 26.12.0 and failed on the winner's exit code after about 31 seconds; its refusal reason was not retained in the old assertion. Shared contention/accounting code is unchanged by this feature. Twenty diagnostic original-test runs on Node 26.7.0 and three original-source probes on exact CI 26.12.0 passed. The historical exit's precise cause therefore remains unconfirmed; the new reservation barrier has a deterministic proof, without claiming a demonstrated production contention repair.
The packed CLI fixture now passes an explicit temporary
pmRootto SDK initialization. The normal PM-linked command previously followed injectedPM_PATHinto pre-seeded settings and refused before training. Its link was replaced using pinnedpm test remove/add, with existing history preserved.pm test pm-rl-7c7m --run --progressnow passes in default schema/source context on Node 26.12.0: measured CLI 14,597.809 ms; total command time 28,377 ms including setup.Behavioural revert proofs are recorded in PM comments:
init_existing_settings_requires_force; explicit fixturepmRootreaches and passes the unchanged timing assertion.Final contention repetitions use real Compose controllers and ordinary temporary trackers:
Completed literal release gates against source/test commit
91d40fcuse isolated HOME/Git configuration and executable RAM temporary trackers. Subsequent tracker receipts leave source/tests unchanged.npm run release:checkbun run release:checkBoth exit 0 with all 30 authored sources reported, 272 documented declarations, zero duplicate clones and production vulnerabilities, approved identities, publish attestation, package validation and the current changelog. Packed CLI measured 10,996.891 ms in the serial npm retry and 11,086.851 ms in Bun against the unchanged 20,000 ms assertion. An earlier npm attempt had 589/590 passing with the sole packed CLI child reaching its unchanged 25,000 ms timeout; concurrent diagnostic probes added load. That failure and separate linked timing failures remain recorded as variability evidence, not included in the passing gate counts. No sampling optimization or threshold change was made.
Owned-resource cleanup verifies zero repository Compose containers and removes only the three images carrying this validation run's exact owner label. Both original PM history byte prefixes remain unchanged. Items remain open for orchestrator verification; claims are released.
PM: pm-rl-whrd, pm-rl-7c7m.