Coding Agent

What it does

When your agent uses it

• Building new features
• Apps in a separate project
• Refactoring large codebases
• Iterative coding that needs file exploration

Example prompts

• “/coding-agent”

Requirements

• Node.js

Workflow steps

5 steps, taken from the first numbered list in SKILL.md.

1. 1Use the right execution mode per agent: Claude Code uses --print (no PTY); Codex/Pi/OpenCode may need interactive terminal.
2. 2Respect tool choice — if the user asks for Codex, use Codex. Don't silently switch agents.
3. 3Be patient — don't kill sessions because they seem slow.
4. 4Monitor progress — check output periodically without interfering.
5. 5Never run coding agents inside the SwarmClaw project directory — use a separate project directory or temp folder.

What it can do on your machine

Read from SKILL.md and the folder at commit ed38ba5. It shows what the files ask for, not the result of running them.

• Tool permissions

  Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.

  From allowed-tools in the SKILL.md frontmatter.

• Runs code

  Shell commands in SKILL.md call:

  • git
  • codex
  • gh
  • claude
  • opencode

  From the folder's file list and the shell code blocks in SKILL.md.

• Network

  Hosts in commands or code, which the agent is likely to contact:

  • github.com

  From URLs in SKILL.md, links to its own repository left out.

• Credentials

  Names no API keys, tokens, secrets or passwords.

  From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Coding Agent loads about 900 tokens when it runs. Until then it costs about 103 tokens; SKILL.md has 207 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it

~103

When it runs · the whole SKILL.md, loaded when a task matches

~900

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

The full file from swarmclawai/swarmclaw at commit ed38ba5, republished under its MIT licence (© swarmclawai). 207 words, ~900 tokens.

name

coding-agent

description

Delegate coding tasks to external coding agents (Claude Code, Codex, Pi, OpenCode) via shell. Use when: (1) building new features or apps in a separate project, (2) reviewing PRs, (3) refactoring large codebases, (4) iterative coding that needs file exploration. NOT for: simple one-liner fixes (just edit directly), reading code (use read/file tools), or work inside the SwarmClaw workspace itself.

cd /path/to/project && claude --permission-mode bypassPermissions --print 'Your task here'

# Quick one-shot (auto-approves changes)
cd /path/to/project && codex exec --full-auto 'Build a dark mode toggle'

# Codex refuses to run outside a git directory. For scratch work:
SCRATCH=$(mktemp -d) && cd $SCRATCH && git init && codex exec "Your prompt"

# Install: npm install -g @mariozechner/pi-coding-agent
cd /path/to/project && pi 'Your task'

# Non-interactive mode
pi -p 'Summarize src/'

# Different provider/model
pi --provider openai --model gpt-4o-mini -p 'Your task'

cd /path/to/project && opencode run 'Your task'

# Clone to temp for safe review
REVIEW_DIR=$(mktemp -d)
git clone https://github.com/user/repo.git $REVIEW_DIR
cd $REVIEW_DIR && gh pr checkout 130
codex review --base origin/main

# Or use git worktree
git worktree add /tmp/pr-130-review pr-130-branch
cd /tmp/pr-130-review && codex review --base main

# Create worktrees
git worktree add -b fix/issue-78 /tmp/issue-78 main
git worktree add -b fix/issue-99 /tmp/issue-99 main

# Launch agents (use background shell execution)
cd /tmp/issue-78 && codex --yolo 'Fix issue #78: <description>. Commit when done.'
cd /tmp/issue-99 && codex --yolo 'Fix issue #99: <description>. Commit when done.'

# Create PRs after
cd /tmp/issue-78 && git push -u origin fix/issue-78
gh pr create --repo user/repo --head fix/issue-78 --title "fix: ..." --body "..."

# Cleanup
git worktree remove /tmp/issue-78
git worktree remove /tmp/issue-99

© swarmclawai, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file

Files

Just SKILL.md in skills/coding-agent of swarmclawai/swarmclaw.

Open the folder on GitHubat commit ed38ba5