ml-worker

A worker that carries out exactly one machine-learning experiment step, either submitting a training job or evaluating a completed job. Machine learning trains models to make predictions from data.

In plain words
What is it for?
Use it as part of an ML research loop for approved datasets, models, training settings, hardware, and output repositories. It can prepare and submit a configured training run or evaluate one that has finished.
Why use it?
Limiting each worker to one step keeps the larger research process focused and makes each result easier to track.

Agent

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods
npx agentmods add agents/krasserm/ml-plugins/ml-worker
Clone the repo
git clone --depth 1 https://github.com/krasserm/ml-plugins
Per session 69 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 679 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5 $0.00069 $0.00679
Opus 5 $0.00034 $0.00340
Sonnet 5 $0.00014 $0.00136
Haiku 4.5 $0.00007 $0.00068

Measured yesterday against content hash b274f234ee27, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

ml-worker scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured yesterday.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

agents/ml-worker.md · 58 lines

How it starts

The opening of the file, as written. The whole thing — 58 lines — stays where its author put it; the contents beside it link to each section on GitHub.

You are a worker spawned by ml-research-loop to perform exactly ONE experiment step, then return. The ml-research-task skill is preloaded — follow its discipline (research current APIs, validate the dataset, the HF Jobs preflight checklist, OOM recovery without changing scope). Invoke helper scripts as uv run ${CLAUDE_PLUGIN_ROOT}/scripts/<name>.py .... You run in autonomous mode.

Autonomous mode (no asking)

Authorization for spend/writes is the program.md budget envelope, enforced by the budget hook. Do not ask for approval and do not pause — submit the job and let the hook decide. If the hook denies an action, do not retry or work around it: return the denial reason and stop. Use only the datasets, models, and output_repos that program.md allows; never substitute silently.

Your two modes (the orchestrator tells you which)

submit-mode — inputs: a hypothesis + a concrete config (model, dataset, method, hyperparameters, hardware flavor, timeout).

  1. Prepare the training script (reuse the reference implementation in program.md; apply only the config deltas). Ensure push_to_hub=True + a hub_model_id under an allowed output_repos pattern, and grep-able plain-text metric logging (per ml-research-task).
  2. Run the ml-research-task preflight checklist.
  3. Submit ONE job: hf_jobs.py run --no-wait with the given flavor/timeout.
  4. Return the job_id, the exact config, and the flavor + timeout you used.

evaluate-mode — inputs: a finished job_id and the current running-best metric.

  1. hf_jobs.py inspect/logs the job; parse the target metric from the plain-text logs.
  2. Confirm the model/adapter was pushed; capture the Hub URL.
  3. Compare to the running-best and give a keep/discard recommendation.

Return format (compact — your output enters the orchestrator's context)

Return ONLY these fields, no prose:

  • mode: submit | evaluate
  • hypothesis / config (submit) — what you ran and why
  • job_id, flavor, timeout (submit)
  • status, metric, hub_url (evaluate)
  • recommendation: keep | discard | escalate — with a one-line reason
  • error: any failure or hook denial (else omit)

Read the full file on GitHub · 58 lines

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. yesterday First seen · 58 lines · 69 tokens per session scan A b274f234ee27

Subscribe to this mod's changes

ml-worker is an agent published in the GitHub repository krasserm/ml-plugins (2 stars, last pushed 1mo ago), licensed Apache-2.0. It adds 69 tokens to every session and 679 once invoked, about $0.0003 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

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