Borrowing it
Nothing to install: this file belongs to cdeust/ai-architect-mcp-codebase. 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/cdeust/ai-architect-mcp-codebase/main/CLAUDE.mdgit clone --depth 1 https://github.com/cdeust/ai-architect-mcp-codebaseWrote 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/cdeust/ai-architect-mcp-codebase/claude-md)<a href="https://agentmods.dev/instructions/cdeust/ai-architect-mcp-codebase/claude-md"><img src="https://agentmods.dev/badge/instructions/cdeust/ai-architect-mcp-codebase/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/cdeust/ai-architect-mcp-codebase/claude-md"><img src="https://agentmods.dev/badge/instructions/cdeust/ai-architect-mcp-codebase/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 | $0.00273 | $0.00273 |
| Opus 5.5 | $0.00109 | $0.00109 |
| Sonnet 5.5 | $0.00055 | $0.00055 |
| Haiku 4.5 | $0.00027 | $0.00027 |
Grade A, and why
ai-architect-mcp-codebase 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 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
ai-architect-mcp-codebase
Rust MCP server: parses repositories with tree-sitter, builds a code graph, answers structural queries.
This file is deliberately short: the host harness (hooks, skills, agents) loads what it
needs on demand. Everything that used to be here is in docs/agent-guidance.md
(environment quirks, gates that fail CI but not local runs, etiquette). Read it before any
non-trivial change.
Commands
cargo test --lib # unit tests
cargo test --test graph_accuracy # accuracy gate
cargo run --release -p bench-end-result --bin bench_end_result -- --all # note the -p
Exit 0 requires aggregate ≥0.85 and every language ≥0.75.
Non-negotiables
- This clone is live-mounted as the installed plugin: never
checkout,pull,stash, or build a different branch in it — the running MCP server dies. Work in a worktree:git worktree add .claude/worktrees/<topic> -b <branch> origin/main. bin/ensure-binary.shpins the SHA-256 ofCargo.tomland.claude-plugin/plugin.json— update both together or CI fails.
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 Changed · -11 lines · -340 tokens per session 8ee253916e98
- 1mo ago First seen · 39 lines · 613 tokens per session scan A 264af7634bd9
ai-architect-mcp-codebase CLAUDE.md is an instructions file published in the GitHub repository cdeust/ai-architect-mcp-codebase (7 stars, last pushed today), licensed MIT. It adds 273 tokens to every session, about $0.0011 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 2026-08-31.
Other instructions, from other repositories
weld testing.instructions.md
Test guidance for implementation changes.
weld copilot-instructions.md
Copilot instructions for configflux/weld: Use @docs/architecture/principles.md for architecture-sensitive changes.
vscode buildNext.instructions.md
Working notes and architecture documentation for the new esbuild-based build system in build/next. Use when making changes to the new build pipeline (transpile/bundle commands, NLS plugin, source-map handling, resource copying, or self-hosting watch tasks).
next.js AGENTS.md
AGENTS.md instructions for vercel/next.js, covering next.js development guide, codebase structure, monorepo overview, core package: packages/next and other important packages.
vscode oss-third-party-notices.instructions.md
Instructions for microsoft/vscode, covering vs code oss third-party-notices pipeline, architecture, pipeline flow in ci, cache eligibility and rollout and applying the notice (cutover).
langchain AGENTS.md
AGENTS.md instructions for langchain-ai/langchain, covering global development guidelines for the langchain monorepo, corridor security analysis, project architecture and context, monorepo structure and development tools & commands.