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.
git clone --depth 1 https://github.com/Helweg/open-codebase-indexWrote 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/helweg/open-codebase-index/search)<a href="https://agentmods.dev/commands/helweg/open-codebase-index/search"><img src="https://agentmods.dev/badge/commands/helweg/open-codebase-index/search/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/helweg/open-codebase-index/search"><img src="https://agentmods.dev/badge/commands/helweg/open-codebase-index/search.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 | $0.00008 | $0.00344 |
| Opus 5.5 | $0.00003 | $0.00138 |
| Sonnet 5.5 | $0.00002 | $0.00069 |
| Haiku 4.5 | $0.00001 | $0.00034 |
Grade A, and why
search 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
Search the codebase using semantic search.
User input: $ARGUMENTS
The first part is the search query. Look for optional parameters:
limit=Nor "top N" or "first N" → set limittype=Xor mentions "functions"/"classes"/"methods" → set chunkTypedir=Xor "in folder X" → set directory filter- File extensions like ".ts", "typescript", ".py" → set fileType
author=XorblameAuthor=X→ set blameAuthor filtersha=XorblameSha=X→ set blameSha filtersince=YYYY-MM-DDorblameSince=YYYY-MM-DD→ set blameSince filteruntil=YYYY-MM-DDorblameUntil=YYYY-MM-DD→ set blameUntil filter
Call codebase_search with the parsed arguments.
Examples:
/search authentication logic→ query="authentication logic"/search error handling limit=5→ query="error handling", limit=5/search validation functions→ query="validation", chunkType="function"/search auth logic [email protected] since=2025-01-01 until=2025-01-31→ query="auth logic", blameAuthor="[email protected]", blameSince="2025-01-01", blameUntil="2025-01-31"
If the index doesn't exist, run index_codebase first.
Return results with file paths and line numbers.
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 · 30 lines · 8 tokens per session scan A 65bfe1363580
search is a command published in the GitHub repository Helweg/open-codebase-index (224 stars, last pushed yesterday), licensed MIT. It adds 8 tokens to every session and 344 once invoked, about $0.0000 per session on Opus 5.5. 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.
Other commands, from other repositories
codesage-reset
Fully regenerate a project's CodeSage index under its writer lock, with a separate offline recovery procedure for an unreadable database.
codesage-reindex
Refresh a project's index incrementally and report retained totals separately from work performed. Clean orphan model tables after successful indexing.
rtfm.ocr
Enable persistent OCR fallback for scanned PDFs and run the OCR pass in the background.
rtfm.status
Show full RTFM index status (with pending-sync counts and health signals).
codesage-prompt-override
Print a compatibility pointer to the canonical CodeSage retrieval skill.
rb-ask
A command for asking questions about the current codebase through RepoBrain, a code knowledge tool.