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affirm

Affirm the Plumbline rules in this project.

Skill by fallguyconsulting

IndexedApache-2.0
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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/fallguyconsulting-affirm

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About

Affirm the Plumbline rules in this project. Creates `.claude/rules/` if absent and writes/overwrites `.claude/rules/plumbline-cheatsheet.md` to match the plugin's canonical cheatsheet. Idempotent — a project already in compliance is a silent no-op.

Use cases: security

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

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Network hosts it talks to 1

  • codeload.github.com · found in install command

Files it touches

  • ~/.claude/skills/affirm

What's inside

Skill name
affirm
Description
Affirm the Plumbline rules in this project. Creates `.claude/rules/` if absent and writes/overwrites `.claude/rules/plumbline-cheatsheet.md` to match the plugin's canonical cheatsheet. Idempotent — a project already in compliance is a silent no-op.
License
Apache-2.0
Instructions
45 lines in SKILL.md · view on GitHub

Files (1)

  • SKILL.md

SKILL.md (first lines)

# /plumbline:affirm

Materialize the Plumbline cheatsheet into the current project as `.claude/rules/plumbline-cheatsheet.md` — the file every Claude Code session in this project will read as the project's coding rules.

The plugin owns the cheatsheet's contents; the project commits the materialized file (so contributors without the plugin still see the rules). Re-run `/plumbline:affirm` after a plugin upgrade to pull in the latest canonical version.

## What this does

1. Verify the canonical source ships with the plugin at `$CLAUDE_PLUGIN_ROOT/docs/plumbline-cheatsheet.md`.
2. Create the `.claude/rules/` directory in the current project root if absent.
3. Overwrite `.claude/rules/plumbline-cheatsheet.md` with the canonical contents.
4. Report whether the file was created, updated, or already in sync.

The rules file is skill-owned boilerplate. Local edits to `.claude/rules/plumbline-cheatsheet.md` are overwritten without prompting. Place project-specific rules additions in separate files under `.claude/rules/` — those are never touched.

## Run

```bash
set -euo pipefail

canonical="${CLAUDE_PLUGIN_ROOT%/}/docs/plumbline-cheatsheet.md"

if [ ! -f "$canonical" ]; then
  echo "error: canonical cheatsheet not found at $canonical" >&2
  exit 1
fi

mkdir -p .claude/rules
target=".claude/rules/plumbline-cheatsheet.md"

if [ -f "$target" ]; then
  if cmp -s "$canonical" "$target"; then
    echo "plumbline-cheatsheet.md already in sync"
    exit 0
  fi
  cp "$canonical" "$target"
  echo "plumbline-cheatsheet.md updated"
  exit 0
fi

cp "$canonical" "$target"
echo "plumbline-cheatsheet.md created"
```

From fallguyconsulting/plumbline, Apache-2.0.

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Last commit (this folder)
Jun 13, 2026 (4 months ago)

From GitHub (fetched Oct 24, 2026).

Details

License
Apache-2.0
First seen
Oct 24, 2026
Last checked
Oct 24, 2026

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Cite this page

affirm skill. Agent Mart. https://agentmart.dev/skills/fallguyconsulting-affirm (last updated 2026-10-24)