Borrowing it
Nothing to install: this file belongs to bakabaka91/claude-baton. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/bakabaka91/claude-baton/main/.claude/commands/dev.mdgit clone --depth 1 https://github.com/bakabaka91/claude-batonWrote 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/commands/bakabaka91/claude-baton/dev)<a href="https://agentmods.dev/commands/bakabaka91/claude-baton/dev"><img src="https://agentmods.dev/badge/commands/bakabaka91/claude-baton/dev/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/commands/bakabaka91/claude-baton/dev"><img src="https://agentmods.dev/badge/commands/bakabaka91/claude-baton/dev.svg" alt="Reviewed on agentmods" width="80" 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 | $0.00000 | $0.00111 |
| Opus 5.5 | $0.00000 | $0.00044 |
| Sonnet 5.5 | $0.00000 | $0.00022 |
| Haiku 4.5 | $0.00000 | $0.00011 |
Grade A, and why
dev 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 1mo 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
Start the MCP server in development mode for manual testing:
- Run
npm run buildfirst to ensure latest code is compiled - Start the server:
node dist/index.js - The server uses stdio transport — it reads JSON-RPC from stdin and writes to stdout
- To test a tool, pipe an MCP request:
echo '{"jsonrpc":"2.0","method":"tools/list","id":1}' | node dist/index.js - Report the server status and available tools
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.
- 1mo ago First seen · 11 lines · 0 tokens per session scan A dfcddf8d5ec0
dev is a command published in the GitHub repository bakabaka91/claude-baton (25 stars, last pushed 6mo ago), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 111 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 2026-09-01.
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commit
A command that examines staged Git changes and proposes a commit message using the Conventional Commits format, such as feat, fix, or docs. Git is a tool for tracking changes to code.
modernize-transform
Transform one legacy module to the target stack — idiomatic rewrite with behavior-equivalence tests.
amp-register
Register your agent with an external AMP provider for cross-provider messaging.
speckit.spec-stats.open
On-demand view of everything not complete: what stage each is stuck at, what the immediate next artifact/command is, oldest-untouched first, stale warnings past staleafterdays.