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.
npx agentmods add commands/jordangunn/nunchuck/plan-execgit clone --depth 1 https://github.com/JordanGunn/nunchuckWhat 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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5 | $0.00000 | $0.00099 |
| Opus 5 | $0.00000 | $0.00049 |
| Sonnet 5 | $0.00000 | $0.00020 |
| Haiku 4.5 | $0.00000 | $0.00010 |
Grade A, and why
plan-exec 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 2d 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.
What it actually says
plan-exec
Execute tasks in the active plan under .plan/active/. Writes concrete Output and Handoff for each task and archives the plan once terminal.
This command delegates to the agent skill at skills/plan/plan-exec/.
Skill Root
- Path:
skills/
Skill Location
- Path:
skills/plan/plan-exec/ - Manifest:
skills/plan/plan-exec/SKILL.md
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.
- 2d ago First seen · 16 lines · 0 tokens per session scan A 42f9b4880c3e
plan-exec is a command published in the GitHub repository JordanGunn/nunchuck (9 stars, last pushed 7mo ago), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 99 tokens. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.
Other commands, from other repositories
upgrade
Upgrade the skillshare CLI binary and/or the built-in skillshare skill.
rust-features
Get Rust version changelog and new features.
diff
Compare two SKILL.md files section-by-section. Parses frontmatter and body sections independently, showing exactly what changed.
writing:review
Exhaustive parallel editorial review of written content.
add-skill
Scaffold a new skill with validation, plugin generation, and README update.
new-skill
Scaffold a new skill directory following this repo's spec.