Tao Run Deft Aoi Cosmos3
Run the disk-backed DEFT AOI improvement loop for NVIDIA Cosmos Reason 3 / Cosmos3 models, using…
by nvidia · Apache-2.0 AND CC-BY-4.0
The skill
Run the disk-backed DEFT AOI improvement loop for NVIDIA Cosmos Reason 3 / Cosmos3 models, using Nano by default and Edge or Super when explicitly requested: evaluate the base model on Proxy and frozen Benchmark splits, mine real image pairs from Proxy gaps, generate AnomalyGen synthetic NG pairs, assemble a per-iteration Train JSON from both producers, train with Cosmos Framework LoRA SFT, and repeat through the selected platform's submit/status/logs/cancel contract. This migration supports bare labels only: the assistant response must be exactly OK or NG. Use for "run Cosmos3 DEFT AOI", "CR3 AOI loop", or "improve Cosmos3 PCB inspection with bare OK/NG"; do not use for rich/reasoning annotation, one-off Cosmos training, or generic anomaly generation.
tao-run-deft-aoi-cosmos3
Installation
Install this application as part of the full TAO skill-bank root, not as only
the companion skill folders: a usable install places skills/, scripts/,
templates/, and versions.yaml under the same TAO_SKILL_BANK_PATH. Any
install that ships only the skill folders, for example an agent plugin or
skills-only install, must also provide the bank-level scripts, templates, and
versions.yaml and point TAO_SKILL_BANK_PATH at their common root before
running scripts/resolve_tao_model.py. Run bundled validation with the skill
Python so dependencies match runtime: PYTHON=$(bash scripts/deft_python.sh); "$PYTHON" -m unittest tests.test_cosmos3_bare. Resolve network mode first. Missing
air-gap imports are a hard stop; network-enabled setup lives only in
references/network-bootstrap.md.
Execution Contract
Treat a run as a disk-backed state machine.
- Preserve every explicit user value and show the source of each effective
value (
user,spec, ordefault) in the Pre-Flight Summary. - Ask which installed platform to use. Do not select Docker, SLURM, Kubernetes, Brev, virtualenv, or an external platform by default.
- Resolve network mode, then read exactly one of
references/air-gap.mdorreferences/network-bootstrap.md. Run the selected platform skill's Preflight and stop on a missing system/native-CLI prerequisite. - Before any mutation or launch, invoke
tao-launch-workflowand show its launch review plus this skill's Pre-Flight Summary. Wait for one explicit approval. - After approval, set
PYTHON=$(bash scripts/deft_python.sh)and initialize${RESULTS_DIR}/deft_state.jsononce with"$PYTHON" scripts/init_deft_state.py. Require--base-model-pathto name the prepared Qwen3-VL PTM, freeze the image with--framework-image-digest, and pass its container URI with--framework-container. Pass the exact GPU model reported by the selected platform's Preflight through--gpu-model(include accelerator memory when available), plus the resolved network mode/source and selected absolute Python. Never reinitialize a resumed run or editdeft_state.jsonby hand. - Before every stage, after context compaction, and before a completion claim,
run
"$PYTHON" scripts/deft_context.py --state ... --stage .... Use its durablenext_stageand the state file'sstatus,current_iteration,iterations.*.status,stage_completed, and latesteventsentry to resume. Do not infer progress from assistant prose or from an artifact that is not recorded in state. - Run every command that can install, fetch, log in, or launch a local
container through
"$PYTHON" scripts/deft_exec.py --state ... -- <command>. In an air-gap it rejects egress/package operations and enforces no-pull. Remote platforms must apply the equivalent immutable no-pull/offline policy. - Submit each GPU stage through the chosen platform's four verbs:
submit/status/logs/cancel. Thesubmitverb must open the job-record before native launch; the returned id is the only launch handle. Poll the backend, not the job-record, and map state toPENDING RUNNING COMPLETE ERROR CANCELED UNKNOWN. - Commit every completed or failed DEFT stage with
"$PYTHON" scripts/commit_stage.py. It verifies the stage inputs and atomically updates both the resume snapshot and orderedeventsarray in state.commit_stage.py --stage trainrequires--framework-configwith the saved Hydraconfig.yaml. Every executed-stage commit requires a positive, measured--duration-sec: use backend elapsed wall time for submitted jobs and a host wall-clock timer for inline stages. A documented--skipmay record0; negative durations are always rejected. - Claim completion only after
"$PYTHON" scripts/finalize_run.pyverifies final Benchmark evidence, successfully commitsloop_stop, and a fresh read ofdeft_state.jsonshowsstatus == "complete",version == 6, non-emptyfinal_artifacts,iterations.baseline.status == "complete", and the final iteration'sstatus == "complete".
Never place secrets in a spec, command, transcript, job-record, or chat. Check
credential presence only. Credentials come from the
user's exported shell environment or from a user-approved env file —
~/.tao/secrets.env, ~/.config/tao/.env, or a path the user points at, never
one merely found in the workspace — loaded with
set -a; source /path/to/.env; set +a. Never print the file's contents or any
credential value.
Cosmos3 Model Contract
- Model skill:
tao-finetune-cosmos-reason. - Supported canonical base models:
nvidia/Cosmos3-Nano— default;nvidia/Cosmos3-Edge— only when explicitly requested;nvidia/Cosmos3-Super— only when explicitly requested.
- Normalize the user aliases
nano,edge, andsuperto those canonical IDs. Preserve any variant selected in the prompt. When no variant is selected, use Nano. - Give hardware recommendations for the selected variant and report when the available compute is insufficient. If the prompt asks for a variant recommendation based on hardware or workload, recommend one with the tradeoff, but require an explicit selection before state initialization. Never silently switch or fall back to another variant.
- Resolve actions with
resolve_tao_model.py, thencosmos_workflow.py resolve --backend cosmos-framework --workload training. - Keep the selected canonical ID as source-model lineage, but do not pass the native online checkpoint directly to Framework.
- The published Cosmos Reason 3 reasoners ship in Cosmos3's own native Omni
format (
model_type="cosmos3_omni"), which Framework cannot load. After launch approval and before baseline evaluation, run"$PYTHON" <model_skill>/scripts/prepare_cosmos3_vlm_checkpoint.pyto convert the selected reasoner into a Qwen3-VL safetensors PTM, or validate and reuse an existing prepared output. - Use the prepared PTM consistently for zero-shot evaluation, Framework Train, Inference, and DCP vision loading. The model being trained is still the selected Cosmos Reason 3 reasoner — keep its canonical ID as checkpoint lineage; the Qwen3-VL PTM is only the on-disk format Framework consumes.
- Nano may use the helper's packaged Qwen3-VL default. Edge and Super require a variant-specific, validated VLM base; never reuse Nano's conversion arguments.
- Pass helper
--backend cosmos-framework; use the resolved Framework image/digest for--runtime-image/--runtime-image-digestand the same immutable image for Train, Evaluate, and Inference. Never copy its pin here. - Train with
cosmos-framework-train --sft-toml=/tao/config/train.toml; Evaluate withcosmos-framework-evaluate --config /tao/config/evaluate.toml; use the public Framework inference entrypoint for standalone inference. - Render Train through
"$PYTHON" scripts/render_cfw_sft.pyand each role's Evaluate TOML through"$PYTHON" scripts/render_cfw_evaluate.py. Never reuse a packaged workspace TOML: the renderers/submitters fail closed on stale backend paths, tokenizer/generation-era fields, or missing Framework-native keys. - Train keeps
model.attn_implementation="cosmos"becausesdpacollapses Framework LoRA SFT to the majority label on this image. Evaluate usessdpabecause its Hugging Face loader rejectscosmos. - Framework Train writes a native DCP checkpoint and a saved Hydra
config.yamlbeside it. Record both; iteration Evaluate setsmodel.config_fileto thatconfig.yaml, never the input SFT TOML, and uses the prepared PTM for vision. The next Train setscheckpoint.load_pathto the preceding DCP. Commit the DCP right after a successful Train and clear checkpoints before an intentional retrain. - Every spec is a nested dictionary serialized to TOML. Never write literal flat dotted keys into a spec.
- Do not mount user data over
/workspace; Framework is installed there. - Run every Docker container with a writable host mount as the invoking
UID:GID with
USER,LOGNAME,HOME=/tmp, and read-only host passwd/group databases. The submit helpers add automatic read-only identity mounts for absolute model, annotation, media, config, and checkpoint paths. Seereferences/cosmos-reason.mdandreferences/tao-mine-aoi-images.md.
Read skills/models/tao-finetune-cosmos-reason/SKILL.md, its
references/skill_info.yaml, and the selected Framework backend contract
before authoring a spec. Replace every dataset/output path with the chosen
platform's compute-frame path and preserve the selected model variant.
Bare OK/NG Contract
This migration supports one annotation mode: bare_okng.
- Each record is ShareGPT JSON with exactly two images in
[AOI, golden_reference]order. - The first human/user turn contains the inspection prompt.
- The final assistant/gpt response is exactly
OKorNG; reasoning, prefixes, explanations, and final-answer wrappers are invalid training labels. NGis the positive class.NG -> OKis a false accept;OK -> NGis a false reject.- Evaluation may normalize a model response by its last standalone
OK/NGtoken, but training labels remain exact. - Rich, reasoning, BCQ/MCQ, and task fan-out modes are outside this migration. Stop instead of silently accepting them.
Run "$PYTHON" scripts/validate_sharegpt.py on Proxy, Benchmark, Mining, and each
generated iteration training file. There is no input Train annotation.
Run "$PYTHON" scripts/validate_split_contract.py to prove that Proxy, Benchmark, and
Mining targets are disjoint and that the frozen Benchmark annotation hash has
not changed. When a generated Train file is supplied, the same validator
requires its targets to come from Mining, the immediate --previous-train
seed, or the current iteration's --synthetic AnomalyGen output, and to remain
disjoint from Proxy and Benchmark. For iteration N>1, --previous-train is
required and the validator proves that every preceding Train record was
retained.
KPI Isolation
- Proxy:
annotations/proxy_kpi.json. It is the only error source for RCCA, routing, mining targets, and data-mixture decisions. It never stops the loop. - Benchmark:
annotations/benchmark_kpi.json. It is frozen, evaluated at baseline and every iteration, and is the only stop-gate source. Benchmark sample errors never feed routing or mining. - Default gate:
recall_ng >= 1.0. If the user asks for accuracy, useaccuracy >= <target>. - Unknown model responses block the gate through the
unknown_predictions <= 0metric constraint.
scripts/analyze_gaps.py writes Proxy RCCA artifacts or Benchmark aggregate
metrics plus metric_result.json. scripts/record_metric_result.py binds the
Benchmark metric evidence to the configured metric contract.
Workspace Contract
workspace/
├── annotations/ # user-supplied
│ ├── benchmark_kpi.json
│ ├── proxy_kpi.json
│ └── mining_pool.json
├── images/ # user-supplied
└── specs/ # produced by this workflow, after approval
├── train_spec.toml
├── evaluate_spec_proxy.toml
└── evaluate_spec_benchmark.toml
Per-role evaluate specs are preferred over one shared evaluate_spec.toml;
both are accepted. See references/data-layout.md.
The user supplies annotations and images. The specs are not an input to
ask for: render them with this application's Framework renderers after the
approval gate and before init_deft_state.py, which refuses to initialize
without them. A workspace carrying its own specs is valid data input, but every packaged
TOML is stale evidence: regenerate Train, Proxy Evaluate, and Benchmark
Evaluate specs with this checkout's Framework renderers. Their absence is
normal and is never a reason to stop and ask the user for a TOML file.
Non-default paths are valid when passed explicitly to
scripts/init_deft_state.py; downstream stages must read the recorded paths
instead of re-inferring conventions. Record absolute host/compute-frame
artifact paths under ${RESULTS_DIR}/baseline or
${RESULTS_DIR}/iterN.
Read references/data-layout.md for the dataset roles, allowed source
categories, and commercial-training eligibility.
Launch Intake and Pre-Flight
Read references/preflight.md and run every ordered check:
- select and preflight the platform;
- resolve workspace, annotations, media root, and
max_iterations; - validate bare ShareGPT and Proxy/Benchmark/Mining target isolation;
- hash and freeze Benchmark annotations;
- resolve current Framework and data-services images from
versions.yaml; - plan its Qwen3-VL PTM conversion and platform-visible output;
- check only required environment-variable presence;
- render Framework Train / Proxy Evaluate / Benchmark Evaluate TOML specs;
- verify compute shape and path visibility from the selected platform;
- run the model/platform launch preflight;
- show the full Pre-Flight Summary and stop for approval.
No results directory, state file, spec mutation, dependency install, image pull, or native launch is allowed before this gate, except the TAO policy's small-Python-helper remediation.
Workflow
The full transition graph is in references/pipeline-and-state.md.
The frozen Benchmark gate is always evaluated before any Proxy work. Proxy evaluate and RCCA exist only to seed the next iteration's mining, so they run only when the gate is unmet. A run that passes the gate stops without spending a Proxy evaluation.
Baseline starts with zero-shot frozen Benchmark evaluation of the unmodified base model, which establishes the zero-shot KPI:
evaluate_benchmarkbenchmark_metrics— stop here when the gate already passes.evaluate_proxy— only when the gate is unmet.proxy_rcca
Before every proxy_rcca commit, write proxy_rcca/RCCA_Report.md from the
three Proxy RCCA JSON artifacts using references/RCCA_REPORT_TEMPLATE.md,
then pass it with --rcca-report. Artifact requirements, section headings,
and state fields come from references/rcca-artifact-manifest.json.
For each iterN when the frozen Benchmark gate is unmet:
routing— derive mining targets from Proxy false accepts/rejects only. Write both formats from the same rows:mining_targets.jsonfor state (--mining-targetstakes the JSON) and afilepath[,label]parquet for the embedding container. Gap rows carry no image paths, so join back to Proxy byid— seereferences/gap-analysis.md.anomalygen— generate synthetic defects withtao-generate-anomaliesininference_onlymode, then turn each generated pair into a bareNGrecord with"$PYTHON" scripts/emit_sdg_sharegpt.py.--skipis permitted only when the driving Proxy RCCA recorded zero false accepts, and even then generating is often still worthwhile. The emitter accepts PAIDF 1.0.1 repo-root-relative and documented output-dir-relative paths, with--sdg-rootas an explicit additional base — seereferences/tao-generate-anomalies.md.data_mining— invoketao-mine-aoi-images, apply the configured cosine floor with"$PYTHON" scripts/filter_mined_by_cosine.py, then run the mapped skill's history-aware post-processing so a filepath selected by a prior iteration cannot enter Train again. The default top-K remains 5; preserve an explicit user value and increase it only when the history summary shows low novelty.assemble_data— align mined target paths to Mining source prompts, golden references, and exact labels with"$PYTHON" scripts/emit_mined_sharegpt.py; createtrain_iter_1.jsonfrom the mined and synthetic records only after Proxy RCA and Mining selection, then append monotonically intotrain_iter_N.jsonin later iterations with"$PYTHON" scripts/assemble_training_json.py.validate_data— validate exact bare labels, files, duplicates, and generated-Train lineage plus Proxy/Benchmark leakage.trainevaluate_benchmarkbenchmark_metrics— stop here when the gate passes orN = max_iterations.evaluate_proxy— only when the loop continues.proxy_rcca
init_deft_state.py writes the first DEFT_Loop_Report.html; every successful
commit_stage.py call then refreshes it through the deterministic
scripts/render_report.py post-commit hook. Stop when the Benchmark contract
passes, max_iterations is reached, or a hard stop occurs. For an ordinary
stop, run "$PYTHON" scripts/finalize_run.py with the explicit reason, then run
"$PYTHON" scripts/render_report.py --require-terminal after optional token alignment.
Follow references/REPORT_RENDERING.md; never delegate or hand-author report
rendering.
Stage References
Read the stage-to-producer/reference table in
references/scripts-and-agents.md before each stage.
Hard Stops
Commit an error stage and do not auto-retry for: invalid disk state; a rich or
non-exact training label; a JSONL or non-array annotation input; a
native Omni at a Framework boundary; stale TOML; an invalid Framework DCP; or
a missing saved Train Hydra config.yaml;
missing/ambiguous mined-to-source alignment; missing/tampered mining history,
cross-iteration mined filepath duplication; target overlap among
Proxy/Benchmark/Mining; a generated Train target outside Mining and AnomalyGen
output, or overlapping Proxy/Benchmark; a changed Benchmark hash; any Benchmark
error used for routing; missing/empty mining output; a failed or empty
AnomalyGen run while Proxy false accepts remain outstanding; an anomalygen
skip not backed by zero false accepts in the driving RCCA; a synthetic record
whose label is not NG or whose paired image is missing; a
PAIDF-incompatible AnomalyGen fine-tuned checkpoint; a missing AnomalyGen
Guardrail checkpoint or an SDG log showing disabled screening; a checkpoint outside
the iteration result tree; an invalid nested TOML spec; unknown evaluator
ground truth; or a program error.
Infrastructure errors may follow the chosen platform skill's bounded retry
policy with a new job-record linked by --retry-of; the DEFT stage is committed
only once, after a successful terminal backend result.
Use this skill
Connect your agent to the Skill Store MCP server and ask for it by ref: nvidia/tao-run-deft-aoi-cosmos3-12490718010.
Details
- Publisher
- nvidia
- Category
- Data & Analytics › Machine learning & training
- License
- Apache-2.0 AND CC-BY-4.0
- Updated
- 2026-10-17
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