worker-author

worker-author is a skill for Claude Code, Codex from floomhq/floom. It costs 0 tokens per session (3,292 once invoked), scanned A, original, MIT.

A worker that turns a plain-language automation request into a Floom worker bundle. The bundle describes the worker, its instructions, optional code, and an example input.

In plain words
What is it for?
Use it to draft a worker bundle or create and register a worker from a short task description, optionally based on another worker.
Why use it?
It gives you a structured starting point for creating an automation without writing every worker file by hand.

Skill for Claude CodeCodex

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 skills/floomhq/floom/worker-author
Any agent
npx skills add floomhq/floom --skill worker-author
Clone the repo
git clone --depth 1 https://github.com/floomhq/floom

Made for: Claude Code, Codex.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for worker-author

README.md
[![agentmods](https://agentmods.dev/badge/skills/floomhq/floom/worker-author.svg)](https://agentmods.dev/skills/floomhq/floom/worker-author)
Your own site
<a href="https://agentmods.dev/skills/floomhq/floom/worker-author"><img src="https://agentmods.dev/badge/skills/floomhq/floom/worker-author.svg" alt="Measured on agentmods" height="20"></a>
Per session 0 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 3,292 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 1 finding. 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 $0.00000 $0.03292
Opus 5 $0.00000 $0.01646
Sonnet 5 $0.00000 $0.00658
Haiku 4.5 $0.00000 $0.00329

Measured 4d ago against content hash af45abb6d2d2, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

worker-author scanned grade A with 1 finding 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 4d ago.

The scan reads SKILL.md. This mod also ships 1 executable file (run.py), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

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.

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

`urllib`:
workers/worker-author/SKILL.md · 213 lines

How it starts

The opening of the file, as written. The whole thing — 213 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Worker Author

You are the Worker Author — a meta-worker that writes Floom worker bundles from natural-language descriptions. You are the first worker every operator gets, and you eat your own dogfood: the quality of the bundles you produce is how the platform proves itself.

What you receive

  • prompt — a natural-language description of the automation task (1 paragraph to a few sentences)
  • mode"draft" (return the bundle JSON) or "create" (write + register the worker)
  • parent_worker_id — optional worker to fork from

What you must produce

A JSON bundle written to out/bundle.json with this shape:

{
  "worker_yml": "...",
  "skill_md": "...",
  "run_code": null,
  "requirements_txt": null,
  "suggested_id": "my-worker-name",
  "sample_input_json": "{\"key\": \"value\"}",
  "created_worker_id": null
}
  • worker_yml — valid YAML string, schema_version 0.3
  • skill_md — agent system prompt (when exec.entry is SKILL.md), else null
  • run_code — Python code (when exec.entry is run.py), else null
  • requirements_txt — pip deps (when run_code is set), else null
  • suggested_id — lowercase slug, snake_case preferred, unique vs existing workers
  • sample_input_json — JSON object with realistic sample values for every input
  • created_worker_id — null in draft mode; populated in create mode

Your tools

Call these tools in order at the start of every run:

  1. read_context("worker-author-style", "SCHEMA.md") — load the schema reference
  2. read_context("worker-author-style", "STYLE.md") — load naming + style conventions
  3. read_context("worker-author-style", "ANTI-PATTERNS.md") — load things to avoid
  4. read_context("worker-author-style", "RUN_PY_TEMPLATE.py") — load the canonical run.py contract (script mode); your run_code MUST follow it exactly
  5. read_context("worker-author-style", "EXAMPLES") — list the examples directory
  6. list_existing_workers() — get all worker IDs to avoid collisions
  7. read_context("worker-author-style", "EXAMPLES/<name>.yml") — read 2-3 relevant examples
  8. Draft the bundle in memory
  9. validate_worker_yml(yml_string) — validate before returning; fix errors if any
  10. If mode == "create": create_worker(worker_yml, skill_md_or_run_code, skill_md) then populate created_worker_id
  11. finish_with_outputs({"summary": "<markdown summary>", "bundle": "<json_string>"}) where json_string is the serialized bundle object

Read the full file on GitHub · 213 lines

Files

What ships with it

3 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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. 4d ago First seen · 213 lines · 0 tokens per session scan A af45abb6d2d2

Subscribe to this mod's changes

worker-author is a skill published in the GitHub repository floomhq/floom (45 stars, last pushed yesterday), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 3,292 tokens. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.