Borrowing it
Nothing to install: this file belongs to alperhankendi/Ctxo. 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/alperhankendi/Ctxo/master/CLAUDE.mdgit clone --depth 1 https://github.com/alperhankendi/CtxoWrote 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/alperhankendi/ctxo/claude-md)<a href="https://agentmods.dev/instructions/alperhankendi/ctxo/claude-md"><img src="https://agentmods.dev/badge/instructions/alperhankendi/ctxo/claude-md.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 | $0.05885 | $0.05885 |
| Opus 5 | $0.02942 | $0.02942 |
| Sonnet 5 | $0.01177 | $0.01177 |
| Haiku 4.5 | $0.00588 | $0.00588 |
Grade A, and why
Ctxo 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 7d 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 — 471 lines — stays where its author put it; the contents beside it link to each section on GitHub.
CLAUDE.md — Ctxo
Project Overview
Ctxo is a Model Context Protocol (MCP) server that gives AI coding assistants dependency-aware, history-enriched context for codebases. It delivers "Logic-Slices" — a symbol plus all transitive dependencies, git intent, anti-pattern warnings, and change health scores — in under 500ms.
- Type: npm package / CLI tool / MCP server (stdio transport)
- Author: Alper Hankendi
- Status: v0.7.0-alpha.0 - 14 MCP tools, pnpm monorepo with 6 packages, 987+ tests
- Language: TypeScript (ESM-first,
"type": "module") - Runtime: Node.js >= 20
Quick Reference
# Dev (pnpm workspace)
pnpm --filter @ctxo/cli dev # zero-build dev run
pnpm -r build # build all packages
pnpm -r test # run tests across workspace (987+ tests)
pnpm -r typecheck # typecheck all packages
pnpm --filter @ctxo/cli test:unit # unit tests only
pnpm --filter @ctxo/cli test:e2e # end-to-end tests
pnpm --filter @ctxo/cli build # build CLI package to dist/
# Usage (consumer)
npm install -g @ctxo/cli # one-time global install (gives you the `ctxo` command)
ctxo install # install language plugins (interactive)
ctxo install typescript go --yes # non-interactive install of specific plugins
ctxo install java # syntax tier + full-tier analyzer when JRE 17+ detected
ctxo install java --full-tier # force full-tier analyzer install
ctxo install java --syntax-only # skip analyzer, syntax tier only
ctxo install --dry-run --pm pnpm # preview install plan with chosen pm
ctxo update # check + apply updates for ctxo + plugins
ctxo update --check # check only, exit 0
ctxo update --print # print install command, never execute
ctxo update --global # force a global install
ctxo update --json # machine-readable output
ctxo index # build codebase index
ctxo index --install-missing # auto-install detected plugins, then index
ctxo index --check # CI gate: fail if index stale
ctxo index --skip-history # fast re-index without git history
ctxo index --max-history 5 # limit commit history per file
ctxo watch # file watcher for incremental re-index
ctxo sync # rebuild SQLite from committed JSON
ctxo init # install git hooks + language detection/install prompt
ctxo init --no-install # init without plugin install prompt
ctxo status # show index manifest
ctxo doctor # health check all subsystems (--json, --quiet)
ctxo doctor --fix # dependency-ordered remediation (--dry-run, --yes)
ctxo version # verbose version report (default)
ctxo --version --verbose # version + installed plugins list
ctxo --version --json # machine-readable version report
ctxo visualize # generate interactive dependency graph HTML
ctxo visualize --max-nodes 200 # limit to top 200 symbols by PageRank
ctxo visualize --no-browser # skip auto-opening browser
ctxo blast-radius <symbolId> --json # blast radius for one symbol, JSON to stdout
ctxo gate --preview # preview which symbols the guard would block
ctxo gate --preview --json # same, machine-readable
# Environment
DEBUG=ctxo:* # enable all debug output
DEBUG=ctxo:git,ctxo:storage # enable specific namespaces
CTXO_RESPONSE_LIMIT=16384 # response truncation threshold (default 8192)
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.
- 7d ago First seen · 471 lines · 5,885 tokens per session scan A ab9d3149610f
Ctxo CLAUDE.md is an instructions file published in the GitHub repository alperhankendi/Ctxo (65 stars, last pushed today), licensed MIT. It adds 5,885 tokens to every session, about $0.0294 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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