Borrowing it
Nothing to install: this file belongs to richardwooding/file-search-on. 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/richardwooding/file-search-on/main/CLAUDE.mdgit clone --depth 1 https://github.com/richardwooding/file-search-onWrote 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/instructions/richardwooding/file-search-on/claude-md)<a href="https://agentmods.dev/instructions/richardwooding/file-search-on/claude-md"><img src="https://agentmods.dev/badge/instructions/richardwooding/file-search-on/claude-md/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/instructions/richardwooding/file-search-on/claude-md"><img src="https://agentmods.dev/badge/instructions/richardwooding/file-search-on/claude-md.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 | $0.04681 | $0.04681 |
| Opus 5 | $0.02341 | $0.02341 |
| Sonnet 5 | $0.00936 | $0.00936 |
| Haiku 4.5 | $0.00468 | $0.00468 |
Grade A, and why
file-search-on CLAUDE.md 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 10d 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 — 127 lines — stays where its author put it; the contents beside it link to each section on GitHub.
CLAUDE.md
This file provides guidance to Claude Code (claude.ai/code) when working with code in this repository.
Project
file-search-on is a Go CLI that recursively searches a directory and matches files against a CEL expression evaluated over file metadata and content-type-specific attributes (e.g. is_pdf && page_count > 10, is_markdown && word_count > 500).
Module: github.com/richardwooding/file-search-on. Toolchain: Go 1.26.2.
Commands
go build ./... # build all packages
go build -o file-search-on ./cmd/file-search-on # build the CLI binary
go test ./... # run all tests
go test -race -coverprofile=coverage.out ./... # what CI runs
go test ./internal/celexpr -run TestEvaluator # run a single test (regex match)
go vet ./...
go fix -diff ./... # preview Go 1.26 modernizers
go fix ./... # apply them
golangci-lint run # CI uses `latest` version
Tree-sitter grammars (binary size). Symbol + complexity extraction for every source language except Go (which keeps the stdlib AST) — Rust / TypeScript / JavaScript / Ruby / Swift / Kotlin / C / C++ plus Python / Java / C# / PHP / Perl / R / MATLAB / Scala — lives in the extracted module github.com/richardwooding/treesitter-symbols (tssymbols.Extract, called from sourcetype.go; positional references via tssymbols.ReferenceSites in reference_lines.go; #540). It carries the github.com/odvcencio/gotreesitter runtime + the bundled grammars and computes per-function cyclomatic + cognitive complexity over the same parse via github.com/richardwooding/codemetrics. gotreesitter is a transitive (indirect) dep of this repo now. The grammar-embedding build tags still apply module-wide: a plain go build / go test embeds all ~206 grammars (+22 MB) — fine for dev. Release builds (+13 MB for the 16). To reproduce a release-equivalent local build:.goreleaser.yaml) pass grammar_subset + one grammar_subset_<lang> tag per supported language so only those embed (
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.
- 10d ago First seen · 127 lines · 4,681 tokens per session scan A a98b39b01d5a
file-search-on CLAUDE.md is an instructions file published in the GitHub repository richardwooding/file-search-on (5 stars, last pushed yesterday), licensed MIT. It adds 4,681 tokens to every session, about $0.0234 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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