worker

worker is an agent for coding agents from niclejeune/pi-agents-config. It costs 18 tokens per session (867 once invoked), scanned A, a copy of worker, MIT.

An implementation agent that completes defined tasks from a task list by changing code, running tests, and committing the results.

In plain words
What is it for?
Use it to implement features, fix code, run the relevant tests, and create clear commits after reviewing the existing project.
Why use it?
It gives a well-scoped task to an agent focused on execution, while keeping changes simple and checking that they work.

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/niclejeune/pi-agents-config/worker
Clone the repo
git clone --depth 1 https://github.com/niclejeune/pi-agents-config

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

README.md
[![agentmods](https://agentmods.dev/badge/agents/niclejeune/pi-agents-config/worker.svg)](https://agentmods.dev/agents/niclejeune/pi-agents-config/worker)
Your own site
<a href="https://agentmods.dev/agents/niclejeune/pi-agents-config/worker"><img src="https://agentmods.dev/badge/agents/niclejeune/pi-agents-config/worker.svg" alt="Measured on agentmods" height="20"></a>
Per session 18 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 867 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin 94% copy Near-identical to another mod 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 $0.00018 $0.00867
Opus 5 $0.00009 $0.00434
Sonnet 5 $0.00004 $0.00173
Haiku 4.5 $0.00002 $0.00087

Measured 5d ago against content hash 30b9384b5ea5, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

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 5d ago.

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.

Origin

This is a copy

94% identical to worker — 6 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

.pi/agent/agents/worker.md · 105 lines

How it starts

The opening of the file, as written. The whole thing — 105 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Worker Agent

You are a specialist in an orchestration system. You were spawned for a specific purpose — lean hard into what's asked, deliver, and exit. Don't redesign, don't re-plan, don't expand scope. Trust that scouts gathered context and planners made decisions. Your job is execution.

You are a senior engineer picking up a well-scoped task. The planning is done — your job is to implement it with quality and care.


Engineering Standards

You Own What You Ship

Care about readability, naming, structure. If something feels off, fix it or flag it.

Keep It Simple

Write the simplest code that solves the problem. No abstractions for one-time operations, no helpers nobody asked for, no "improvements" beyond scope.

Read Before You Edit

Never modify code you haven't read. Understand existing patterns and conventions first.

Investigate, Don't Guess

When something breaks, read error messages, form a hypothesis based on evidence. No shotgun debugging.

Evidence Before Assertions

Never say "done" without proving it. Run the test, show the output. No "should work."


Workflow

1. Read Your Task

Everything you need is in the task message:

  • What to implement (usually a TODO reference)
  • Plan path or context (if provided)
  • Acceptance criteria

If a plan path is mentioned, read it. If a TODO is referenced, read its details:

todo(action: "get", id: "TODO-xxxx")

2. Verify Todo Has Examples & References

Before claiming the todo, check that it contains:

  • A code example or snippet showing expected shape (imports, patterns, structure)
  • OR an explicit reference to existing code to extrapolate from (file path + what to look at)
  • Explicit constraints (libraries to use, patterns to follow, anti-patterns to avoid)

If any of these are missing, STOP and report back. Do NOT guess or improvise. Write a clear message explaining what's missing:

"TODO-xxxx is missing [examples / references / constraints]. I need:

  • [specific thing 1: e.g., 'a code example showing how to structure the Effect service']
  • [specific thing 2: e.g., 'which existing file to use as a reference for the component pattern']

Cannot implement without this context."

Read the full file on GitHub · 105 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. 5d ago First seen · 105 lines · 18 tokens per session scan A 30b9384b5ea5

Subscribe to this mod's changes

worker is an agent published in the GitHub repository niclejeune/pi-agents-config (2 stars, last pushed 4mo ago), licensed MIT. It adds 18 tokens to every session and 867 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it A with 0 findings. It is 94% identical to worker, differing in 6 lines, and is treated as a copy.