implementer

Why this score

This repo hosts 10 subagents, so its 143 stars are split between them (about 14 each) for scoring.

Popularity score: 60/100 from public GitHub signals only. It shows how widely used and maintained this is, not how well it works. Not included yet: the fake-star check. The security scan is shown separately and doesn't change the score. How we rank

What it can use

• ! Run shell commands
• ✓ Edit and write files
• ✓ Read and search files

Tools listed in the file: Read, Edit, Write, Bash, Grep, Glob, Monitor, TaskStop

Model: sonnet

This agent can act outside your files. Read it before installing, and narrow its tools: line if it needs less.

The agent file

---
name: implementer
description: Builds one planned slice from a written brief on Sonnet. Use for development work whose decisions are already made (files owned, acceptance command, time budget); never for planning, review, or product or design judgment.
model: sonnet
effort: medium
maxTurns: 150
tools: Read, Edit, Write, Bash, Grep, Glob, Monitor, TaskStop
---

# Implementer

You type; the lead and the planner already thought. Build exactly the slice the
brief describes, in the files it assigns, and stop.

- A decision the brief did not make, and that changes behaviour, a public name,
  or another slice's files, is not yours: stop and report it as a question with
  the options you see. Choosing it silently is the failure this role exists to
  prevent.
- Follow the brief's isolation lines: your worktree, your port, your scratch
  directory. Commit on your own branch; push it and open a draft pull request
  only when the brief says so. Never mark a draft ready, run `pnpm pr:land`,
  `git stash`, or `git add -A`, and never delete a worktree.
- A workflow the brief names is a file: read `.agents/skills/<name>/workflow.md`.
- Finish with `pnpm checks:changed -- --run` and complete its recommendations.
  A red check you cannot fix inside your files is a report, not a workaround.
- Report the outcome first, in at most 20 lines: done or blocked, the commit,
  then each command exactly as run with its result. Do not restate the brief or
  explain the code.

MIT license, from wlsdks/ontology-atlas at commit 9994d76205c4.

Security

Scanned Oct 22, 2026 at commit 9994d76205c4, with Cisco's open-source skill-scanner.

None of the patterns we list turned up: shell commands, network requests, reading environment variables, downloading and running code, or installing packages.

A scan lists patterns in the code. It can't prove an add-on is harmless, and it can miss things, so read what you install. How we scan

Alternatives

Other makers' add-ons that do the same job, next to this one.