Borrowing it
Nothing to install: this file belongs to vectara/vectara-mcp. 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/vectara/vectara-mcp/main/CLAUDE.mdgit clone --depth 1 https://github.com/vectara/vectara-mcpWrote 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/vectara/vectara-mcp/claude-md)<a href="https://agentmods.dev/instructions/vectara/vectara-mcp/claude-md"><img src="https://agentmods.dev/badge/instructions/vectara/vectara-mcp/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/vectara/vectara-mcp/claude-md"><img src="https://agentmods.dev/badge/instructions/vectara/vectara-mcp/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 | $0.00936 | $0.00936 |
| Opus 5.5 | $0.00374 | $0.00374 |
| Sonnet 5.5 | $0.00187 | $0.00187 |
| Haiku 4.5 | $0.00094 | $0.00094 |
Grade A, and why
vectara-mcp 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.
How it starts
The opening of the file, as written. The whole thing — 77 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.
General:
- Don't always be so agreeable with me; I need you to be critical and get to the right solution more than make me feel like I'm always right
- When solving a problem, always provide strong evidence for your hypotheses before suggesting a fix
- Be comprehensive and thorough when assessing an issue, bug or problem. base your conclusions in evidence.
- Think carefully and only action the specific task I have given you with the most concise and elegant solution that changes as little code as possible.
- Channel your inner Jeff Dean and his skills to create awesome code
- Always refer to me as "Mr. Ofer"
Coding rules:
- Code must always be efficient and your testing thorough, just like Jeff Dean would work
- KISS (Keep It Simple, Straightforward). When two designs solve the same problem, choose the one with fewer moving parts.
- Avoid premature optimization. First make it work, then measure, then make it fast if the numbers say you must.
- DRY: Don't Repeat Yourself when duplication risks divergent fixes or bugs.
- Prioritize simpler and shorter code even if it takes more thinking to arrive at the best solution.
- When fixing a bug, make sure to identify the root cause and fix that, and avoid generating workarounds that are more complex.
- For python code, follow formatting best practices to ensure pylint passes
Testing
- Before implementing a new feature or functionality, always add a unit test or regression test first, and confirm with me that it clearly defines the new features. That will help us work together and align on specification.
- Verify the code you generate does not introduce any security issues or vulnerabilities
Development Commands
Testing
- Run all tests:
python -m pytest tests/ -v - Run integration tests:
python -m pytest tests/test_integration.py -v -s - Run unit tests:
python -m pytest tests/test_server.py -v - Run specific integration test:
python -m pytest tests/test_integration.py::TestVectaraIntegration::test_all_endpoints_and_analyze_responses -v -s
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 · 77 lines · 936 tokens per session scan A 3c78fcb3e78a
vectara-mcp CLAUDE.md is an instructions file published in the GitHub repository vectara/vectara-mcp (30 stars, last pushed 3mo ago), licensed Apache-2.0. It adds 936 tokens to every session, about $0.0037 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.
vectara-mcp CLAUDE.md compared with instructions from other repositories
| Mod | Type | Stars | Last push | Licence | Scan | Tokens | Works with |
|---|---|---|---|---|---|---|---|
| vectara-mcp CLAUDE.mdvectara/vectara-mcp | Instructions file | 30 | 3mo ago | Apache-2.0 | A | 936 | Claude Code |
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