Borrowing it
Nothing to install: this file belongs to vcav-io/agentvault. 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/vcav-io/agentvault/main/CLAUDE.mdgit clone --depth 1 https://github.com/vcav-io/agentvaultWrote 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/vcav-io/agentvault/claude-md)<a href="https://agentmods.dev/instructions/vcav-io/agentvault/claude-md"><img src="https://agentmods.dev/badge/instructions/vcav-io/agentvault/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/vcav-io/agentvault/claude-md"><img src="https://agentmods.dev/badge/instructions/vcav-io/agentvault/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 | $0.00433 | $0.00433 |
| Opus 5.5 | $0.00173 | $0.00173 |
| Sonnet 5.5 | $0.00087 | $0.00087 |
| Haiku 4.5 | $0.00043 | $0.00043 |
Grade A, and why
agentvault 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 2mo 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
AgentVault
Open agent-native bounded-disclosure coordination protocol.
Build & Test
# Rust (relay)
cargo build --workspace
cargo test --workspace
cargo clippy --workspace -- -D warnings
cargo fmt --all -- --check
# TypeScript (client)
cd packages/agentvault-client && npm install && npm test
# TypeScript (MCP server)
cd packages/agentvault-mcp-server && npm install && npm run build
Requires Rust 1.88.0+ (pinned in rust-toolchain.toml).
Packages
| Package | Language | Description |
|---|---|---|
packages/agentvault-relay |
Rust | Ephemeral API-mediated relay with receipt signing (no persistent storage) |
packages/agentvault-client |
TypeScript | Standalone relay client library (fetch-based) |
packages/agentvault-mcp-server |
TypeScript | MCP server exposing agentvault.* tools |
packages/agentvault-demo-ui |
TypeScript | Three-panel protocol observatory (demo/debugging) |
Dependencies
- vault-family-core (git dep) -- shared IFC vocabulary, receipt envelope, escalation interface
- MCP server depends on
agentvault-clientviafile:link - av-tee/tee-verifier — TEE receipt verification (Rust). The TS client surfaces TEE fields for introspection; full cryptographic verification requires tee-verifier. Intended path: published crate or VFC-hosted. Do not let this calcify as a git dep.
Key Directories
docs/— architecture docs, threat model, guides,environment-variables.mdfor relay configschemas/output/— content-addressed output schemas (registry lookup by hash)prompt_programs/— model profiles and enforcement policies with lockfile validation
CI
GitHub Actions (ci.yml) runs fmt, clippy, build, and test for Rust.
TypeScript packages are covered by ci-typescript.yml.
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.
- 2mo ago First seen · 48 lines · 433 tokens per session scan A 4d60c9d56560
agentvault CLAUDE.md is an instructions file published in the GitHub repository vcav-io/agentvault (2 stars, last pushed 7mo ago), licensed Apache-2.0. It adds 433 tokens to every session, about $0.0017 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
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.
deepseek-harness AGENTS.md
AGENTS.md instructions for deepseek-ai/deepseek-harness, covering agents.md, pre-stable apis and released session data, repository layout, commands and host sandbox failures.
vscode copilot-instructions.md
Copilot instructions for microsoft/vscode, covering vs code copilot instructions, project overview, root folders, core architecture (src/ folder) and built-in extensions (extensions/ folder).