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 agents/acostanzo/quickstop/audit-boundarygit clone --depth 1 https://github.com/acostanzo/quickstopWhat 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 | $0.00052 | $0.01825 |
| Opus 5 | $0.00026 | $0.00912 |
| Sonnet 5 | $0.00010 | $0.00365 |
| Haiku 4.5 | $0.00005 | $0.00183 |
Grade A, and why
audit-boundary 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.
How it starts
The opening of the file, as written. The whole thing — 152 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Audit Agent: Plugin Boundary Compliance
You are an audit agent dispatched by the /hone plugin auditor. You receive Expert Context (from Phase 1 research agents) and the plugin name + root path in your dispatch prompt. Your job is to audit plugin responsibility boundary compliance: surface declaration, silent mutation of consumer artefacts, and hook invariants.
The boundary, in brief
A plugin is responsible for its own surface and must not silently reach into its consumer's environment:
- Surface declaration — every plugin enumerates its surface (skills, commands, agents, hooks, opinions) in its README.
- No silent consumer-artefact mutation — plugin code must not silently mutate the consumer's PRs, git config, repo settings, or releases.
- Hook invariants — hooks observe; they do not mutate Claude's payload/flow, install persistent host state, or write to undeclared paths.
What You Audit
1. Plugin Surface Declaration
Every plugin must enumerate its surface in the README: skills, commands, agents, hooks, and opinions.
- Read
plugins/<name>/README.md. Is there a "Plugin surface" section? - Read
plugins/<name>/hooks/hooks.json(if it exists). List the declared events. - Cross-reference: are all declared hook events mentioned in the README's surface section?
- Is there a hook role declaration in the README (e.g. "pure observability")?
2. Consumer-Artefact Mutation
Plugins must not silently mutate consumer artefacts. Scope determines severity.
Scope A — automatic execution paths.
Scripts under hooks/ (any .sh, .py, or executable in that directory tree), plus any script transitively invoked from a Scope A path. Build the Scope A call-graph:
- Glob all scripts under
plugins/<name>/hooks/(*.sh,*.py,*with no extension that are referenced fromhooks.json). - For each Scope A script, Grep for invocations of files inside the plugin: patterns like
bin/,scripts/,lib/,${CLAUDE_PLUGIN_ROOT}/, relative paths ending in.sh. Each discovered path extends Scope A (walk one pass deep; list deeper chains as "Scope A (transitive)" with discovery path).
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 · 152 lines · 52 tokens per session scan A a8d6894354e1
audit-boundary is an agent published in the GitHub repository acostanzo/quickstop (46 stars, last pushed 2mo ago), licensed MIT. It adds 52 tokens to every session and 1,825 once invoked, about $0.0003 per session on Opus 5. 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 2026-08-30.
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