Reinforcement Learning
Transformers
English
post-training
distillation
agentic-coding
composer-2.5
cursor
kimi-k2
grpo
dapo
diloco
openenv
trl
verl
research
methodology
Instructions to use Codeseys/composer-replication-framework with libraries, inference providers, notebooks, and local apps. Follow these links to get started.
- Libraries
- Transformers
How to use Codeseys/composer-replication-framework with Transformers:
# pip install -U transformers accelerate # Load model directly from transformers import AutoModel model = AutoModel.from_pretrained("Codeseys/composer-replication-framework", device_map="auto") - Notebooks
- Google Colab
- Kaggle
Commit History
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Wave 3 cleanup: close deferred-LOW review items R5/R6/R11
Baladithya Balamurugan +1: Claude Opus 4.8 (1M context)- R5: EKSExecutor.cancel + SageMakerExecutor.cancel now re-raise genuinely unexpected errors instead of swallowing ALL exceptions; only already-terminated signals are idempotent no-ops (EKS: 404/409; SM: ResourceNotFound + already-terminal ValidationException via new _is_already_terminal). + a test that an AccessDenied-class error propagates. - R6: EKSExecutor.collect() result dicts include a 'result' key (the S3 rendezvous URI, or None) for cross-backend shape uniformity with Local/Modal/SageMaker. - R11: seed torch.manual_seed(0) in spike-006 test_alternating_batches_loss_ decreases so the loss-trend assertion is reproducible and no longer flaky under CPU contention (it failed only in the contended full suite, passed in isolation). Root cause was unseeded nondeterminism, not a real regression. All Wave-3 review findings (R1-R11) now closed. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>7d9dbbc -
Wave 1: fix 8 failing tests + unblock Docker E2E + dep/doc debt
Baladithya Balamurugan +1: Claude Opus 4.8 (1M context)Backlog-resolution Wave 1 (branch backlog/goal-resolution-2026-06). Bugs fixed: - B1 (P0): generate spikes/007 synthetic_session_with_error.jsonl fixture (never committed — .gitignore *.jsonl whitelisted the sibling but not this one) → the 8 failing test_trace_examples_adapter tests now pass. Added the missing .gitignore whitelist line. - B2 (P2): [dev] extra was un-installable on Apple Silicon (pulled Linux-only torchft-nightly). Dropped diloco from base [dev]; added [dev-full] for Linux. - B3 (P2): [serverless] extra now includes s3fs/boto3/kubernetes (needed for real S3 rendezvous + the EKSExecutor/SageMakerExecutor adapters). Newly unblocked: - D1 (…-245d): Docker substrate E2E — Docker now available on host; both gates (4-gate substrate inversion + cache-scrub-in-container) PASS. Long-standing "hardware-blocked" item closed. Doc/API debt: - B4: reconciled divergent test counts (115/176/210/232) to one canonical figure measured this session: 266 passed / 62 skipp…c11cf49
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Wave 18: 14 backlog items closed + 3-reviewer cross-family review
Polish wave grinding down 14 P0/P1/P2 items from Wave 7 audit + Wave 11/12 self-critique + Wave 16/17 deferrals. Two passes of 3-reviewer cross-family review (Gemini 3.1 Pro / Grok 4.3 / Sonnet 4.6) caught 6 real issues in round 1; round 2 verified all fixed plus 2 new flagged items addressed. Doc honesty (P0): - README.md scoping change at line 29: dropped "any HuggingFace base model" for the more honest "any HF causal LM with a chat template (Qwen, Llama, Mistral, DeepSeek, Phi, Gemma families)". Added qualifier that Spike 006 zeroed the SDPO channel due to shape misalignment, so SDPO is verified via the integration test suite + end-to-end examples, not Spike 006. - spikes/005-integrated-trainer-skeleton/verl_path/README.md NEW — explicit STATUS: design-only marker per Wave 7 audit Objection 3. Documents what to do before relying on the VeRL path (install Ray, run parity test against trl_path). Test honesty (P1): - spikes/006-real-hf-model-smoke/verdict.md numerical c…54efac8 -
Wave 12: close V1-V8 brief — GPU smoke, SDPO firing, real-trace e2e
Addresses cross-model review priority items 3, 4, 5, 9 — the ones that materially close the original V1-V8 brief. Wave 12 deliverables: 1. **Spike 002a-mini-gpu-smoke** (NEW directory) — closes "zero GPU evidence": - 50-step Qwen2.5-0.5B-Instruct training run on local RTX 5090 (sm_120, Blackwell), bf16, in 35 s wall-clock total - Loss 0.7354 → 0.00034 (99.95% reduction), all grads finite, peak VRAM 5.31 GB (well under ADR-001's 8 GB target), median 480 ms/step - Captures per-step memory + step-time + finite-grads in results/gpu_loss_curve.csv + results/gpu_verdict.json - ADR-001's local-5090 choice now empirically verified (vs ~3-5 min cold-start cycle estimated for Modal L4) - Resolves cross-model review item #4 2. **Spike 006-strict** (`tests/test_strict.py`) — closes the tautology critique: - test_alternating_batches_loss_decreases: 10 steps alternating between factorial + binary_search variants. Late-avg-loss < 50% × early-avg-loss. …d88715c -
Wave 11: cross-model adversarial review + honest down-revision
Phase 11 of the deep work loop ran a cross-model adversarial review on the Wave 7-10 work. The review (anthropic/claude-opus-4.7, separate session) found 10 substantive flaws including 2 BLOCKERs: 1. **Scorecard inflation** — initial self-claim was 5/10 → 9/10, honest re-scoring is 5/10 → 7/10 ✅ + 1/10 ⚠️ + 2/10 ❌-spirit. 2. **Spike 008 acceptance criterion silently redefined** — BACKLOG required "2 replicas converge"; what shipped is "1 replica + passthrough no-op allreduce." The recon doc's "ready-to-paste 2-replica pattern" hits a single-process post-hook sequencing bug. Both BLOCKERs addressed in this commit: - docs/research/WAVE_7_10_FINAL_REVIEW.md — full 423-line review committed. - docs/VISION_VALIDATION.md — replace 9/10 self-claim with honest 7/10 re-scoring + per-test caveats acknowledging the spirit-failures of tests 6/8/10. Explicitly notes "the framework as of this commit has zero GPU evidence of any kind." - spikes/008-streaming-diloco/verdict.md — s…f16fa23 -
Spike 007: include synthetic_session.jsonl fixture in repo
The .gitignore whitelists spike fixture files but missed spikes/007-real-trace-ingestion/fixtures/synthetic_session.jsonl. Without it, anyone pulling the repo cannot run the Spike 007 tests because the fixture they reference is missing. Adds !spikes/**/fixtures/*.jsonl to the .gitignore whitelist.a35a8d7 -
Wave 7+8+9: spikes 006/007/008 — close vision-validation gaps V2/V5/V8
Three CPU-only gap-closer spikes from the deep work loop's BACKLOG.md, each with its own README, implementation, tests, and verdict. Spike 006 — Real HF model smoke (closes V8) - Promotes the framework from "mock 4-layer toy LM" to "real Qwen2.5-0.5B-Instruct via AutoModelForCausalLM with real tokenizer". - New free `compose_loss(model, inputs, alpha, beta)` function decouples the 3-channel loss composition from TRL's GRPOTrainer machinery for verification. Production path stays in ComposerReplicationTrainer._compute_loss. - 5 backward steps on CPU, loss 0.7390 → 0.0031, all grads finite. - 9 unit tests + run_smoke.py CLI + results/loss_curve.csv + verdict.md. - Wall-clock: 4 minutes (CPU forward pass on 0.5B model). Spike 007 — Real trace ingestion (closes V5) - Maps real Claude Code session JSONL → TraceState records. - Per ADR-002: 1,015 local sessions on this machine, zero acquisition cost, schema validated by 4 independent community projects + JSON Schema. - Design: one …57af35d
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Wave 4: data collator + loss composition smoke (38/38 tests pass)
baladithyabSpike 005's biggest engineering gap was: composer_trainer.py described the inputs it expected (ctx_teacher_input_ids, sdpo_loss_mask, dpo_chosen_input_ids, etc.) but nothing constructed them from raw traces. This wave fills that gap and adds an end-to-end gradient-step smoke test on a real model. Added: 1. trl_path/data_collator.py - ComposerDataCollator turns raw TraceExample into the exact dict shape ComposerReplicationTrainer._compute_loss expects. Channel 1: input_ids, attention_mask, response_mask, rewards. Channel 2: ctx_teacher_input_ids, sdpo_loss_mask (post-hint = 1, else -100). Channel 3: dpo_chosen_input_ids, dpo_rejected_input_ids, response_masks. Hint injection, error-site detection, multi-turn DPO tokenization, padding. 2. tests/test_data_collator.py (15 tests, all pass): verifies SDPO is skipped when no error sites or no hint generator, post-hint mask correctly marks 1 vs ignore_index, DPO response masks zero prompt tokens, padding handles mixe…157cdba -
Wave 3: integration architecture + spike-005 trainer skeleton (16 tests pass)
baladithyabUser asked: can RLVR + Composer-SDPO + N-teacher-replay all integrate complementarily with the PyTorch agentic-RL stack (Monarch / TorchForge / OpenEnv / VeRL / TRL)? Answer (verified, not extrapolated): YES, with concrete extension points: 1. Verified ground-truth integration surfaces via DeepWiki audits: - TRL: subclass GRPOTrainer, override _compute_loss(model, inputs); plug OpenEnv via environment_factory= kwarg. - VeRL: register a new advantage estimator via @register_adv_est(name); attach extra fields to DataProto.batch / non_tensor_batch (precedent exists — distillation already uses 'teacher_log_probs' the same way). - OPSD: generalized_jsd_loss is a self-contained static method, MIT, directly liftable. FlashAttention-2 compatible, standard PyTorch. 2. NEW docs/INTEGRATION_ARCHITECTURE.md (30KB): - Per-framework integration matrix (TRL / VeRL / TorchForge / Monarch / OpenEnv) × per-channel (RLVR / SDPO / N-teacher-replay). - Sequence di…fd77f74 -
Integrate Cursor blog directly + audit research note + add SDPO/OPSD link
baladithyabUser flagged a real gap: I had dispatched a subagent to research Composer 2.5 but never personally read the Cursor blog. Audit findings: 1. The targeted-textual-feedback method = published SDPO (Hubotter et al., arXiv:2601.20802, ICLR 2026 Workshop) + OPSD (Zhao et al., arXiv:2601.18734, code at github.com/siyan-zhao/OPSD, MIT). Cursor cites these directly in footnote 1 of the blog. The subagent's research note never mentioned them. This is huge: there's published, MIT-licensed code for Composer's secret sauce. 2. Several claims in research/01-composer-2.5.md are NOT in the Cursor blog and were extrapolated from secondary sources ("85% post-training compute", "Anyrun" environment name, specific benchmark scores, "PPO or GRPO variant"). Likely correct via community consensus but not blog-verified. 3. Composer hint-distill (single model, hint-conditioned context) and trace-replay-distill (N external teachers) are TWO genuinely different mechanisms, not compe…1cede23 -
Spike v0.0 laydown + spike 001 VALIDATED
Decompose v0.0 into 4 risk-ordered sub-spikes: - 001 teacher-replay-cost (kill-switch, ✅ EXECUTED + VALIDATED in this commit) - 002a trace-collection-trl (planned) - 002b trace-collection-prime-rl (comparison-spike) - 003 dpo-pairs-from-disagreement (planned) - 004 ab-train-grpo-vs-trace-replay-dpo (terminal experiment) Spike 001 result (real, not scaffolding): - 150 teacher API calls (Opus 4.7 + GPT-5 + DeepSeek V4 Pro via OpenRouter) - 50 synthesized agentic-coding states as fixture - 0 errors, total spend $0.98 - Mean per-trace cost: $0.98 (target: <$5) ✅ — 5x headroom - p95 step latency: 20.5s (target: <30s) ✅ - p99 step latency: 23.2s (target: <60s) ✅ - Cost composition: Opus dominates ($0.81 of $0.98); DeepSeek + GPT-5 essentially free This validates the framework's central economic claim. Even ungated (no VOI, no tiered teachers), cost is ~$1/trace not $64/trace. With VOI gating in v0.1 we project ~$0.30/trace. Trace-replay-distillation is economically viable. Files: - spikes…35581fd