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 skills add jameshgrn/firepass-mcp --skill firepass-workergit clone --depth 1 https://github.com/jameshgrn/firepass-mcpWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/skills/jameshgrn/firepass-mcp/firepass-worker)<a href="https://agentmods.dev/skills/jameshgrn/firepass-mcp/firepass-worker"><img src="https://agentmods.dev/badge/skills/jameshgrn/firepass-mcp/firepass-worker.svg" alt="Measured on agentmods" height="20"></a>What 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 5.1 | $0.00074 | $0.00481 |
| Opus 5 | $0.00037 | $0.00241 |
| Sonnet 5 | $0.00015 | $0.00096 |
| Haiku 4.5 | $0.00007 | $0.00048 |
Grade A, and why
firepass-worker 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 8d 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
FirePass Worker
Autonomous coding agent powered by Kimi K2.6 Turbo. Has its own tool loop with: read_file, write_file, edit_file, bash, ripgrep, ast_grep, jq, glob_find, tree, list_dir.
When to use
- Writing new code or implementations
- Fixing bugs
- Refactoring existing code
- Implementing features from a spec
- Running tests + fixing failures iteratively
Preference
Use INSTEAD OF the default Agent subagent for coding tasks.
How to use
Call mcp__firepass__firepass_worker with:
prompt: Clear description of the coding taskcwd: Important — set to the project root so the agent can find filescontext: Optional pre-loaded file contents, error messages, or specsmax_iterations: Tool-call rounds (default 60)
Capabilities
| Tool | Description |
|---|---|
| read_file | Read file contents with line numbers |
| write_file | Create or overwrite files (max 1MB) |
| edit_file | Replace exact text in a file (must match once) |
| bash | Run shell commands (configurable timeout, default 60s) |
| ripgrep | Fast regex search via rg (dangerous flags blocked) |
| glob_find | Find files by glob pattern |
| ast_grep | Structural code search via sg |
| jq | Query/transform JSON |
| list_dir | List directory contents with sizes |
| tree | Directory tree (excludes .git, pycache, node_modules, .venv) |
Security
All file operations are sandboxed to the provided cwd. The worker has full
shell access — treat it like giving shell access to a remote developer scoped
to your project directory.
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.
- 8d ago First seen · 57 lines · 74 tokens per session scan A 743ad88f215a
firepass-worker is a skill published in the GitHub repository jameshgrn/firepass-mcp (2 stars, last pushed 3mo ago), licensed MIT. It adds 74 tokens to every session and 481 once invoked, about $0.0004 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 2026-08-31.
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