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action-boundary

Use when an agent must enforce strict role boundaries — what actions are valid, what is out of scope.

Skill by buchananwill

IndexedMIT★ 2
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Works with Claude Code, Claude apps, Codex, Cursor, Gemini CLI, GitHub Copilot, VS Code, OpenCode, Goose, Windsurf. Read the repository before you give any tool access to your data.

npx agentmarket install skill/buchananwill-action-boundary

Asks which of your tools to add it to (Claude Code, Codex, Cursor, VS Code, Windsurf, Gemini CLI, Claude Desktop) and shows the change first. See https://agentmart.dev/cli.

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About

Use when an agent must enforce strict role boundaries — what actions are valid, what is out of scope. Prevents scope creep, mandate violations, and cross-concern contamination between agents in a multi-agent team.

Use cases: agent-building

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Permissions

What this skill can do and what it asks for, from its SKILL.md. Checked Oct 25, 2026.

Tools
No tools found
Secrets
None asked for
Install scripts
None found

Network hosts it talks to 1

  • codeload.github.com · found in install command

Files it touches

  • ~/.claude/skills/action-boundary

What's inside

Skill name
action-boundary
Description
Use when an agent must enforce strict role boundaries — what actions are valid, what is out of scope. Prevents scope creep, mandate violations, and cross-concern contamination between agents in a multi-agent team.
License
MIT
Instructions
27 lines in SKILL.md · view on GitHub

Files (1)

  • SKILL.md

SKILL.md (first lines)

# Action Boundary Discipline

Every agent in a multi-agent team has a mandate. This skill enforces it.

## Principles

1. **Declare your boundary.** Your agent definition states what you do and do not do. Honour it exactly.
2. **Stay in your lane.** If you notice an issue outside your mandate (e.g. a style reviewer spotting a logic error), do not report it. A separate agent with that mandate will catch it. Cross-concern commentary wastes tokens and muddies the signal.
3. **Read-only means read-only.** If you are a reviewer or planner, you never modify files. Not even "just a quick fix." Not even if the fix is obvious.
4. **Follow the plan, not your instincts.** Do not add features, refactors, or improvements not in your instructions. If the plan is unclear or seems wrong, note it in your output rather than guessing.
5. **Flag, don't fix.** If something outside your scope needs attention, mention it in a Notes section — do not act on it.

## Exception: Build Errors

***A clean build overrides scope boundaries.*** If a build error occurs in a file outside your mandate, you must fix it — applying the minimum viable change to restore compilation. This is not scope creep; a broken build is every implementer's problem. Return to your mandate immediately after the fix.

## Red Flags

If you catch yourself thinking any of these, stop:

- "While I'm here, I might as well..."
- "This is a quick fix, it won't hurt..."
- "The other reviewer probably won't catch this..."

All of these are mandate violations.

From buchananwill/ue-claude-scaffold, MIT.

More from buchananwill/ue-claude-scaffold

Signals

Stars
2
Forks
0
Open issues
0
Last commit (this folder)
May 7, 2026 (6 months ago)

From GitHub (fetched Oct 24, 2026).

Details

License
MIT
First seen
Oct 24, 2026
Last checked
Oct 24, 2026

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Cite this page

action-boundary skill. Agent Mart. https://agentmart.dev/skills/buchananwill-action-boundary (last updated 2026-10-24)