zvec-mcp: Instructions file for Codex

AGENTS.md

zvec-mcp AGENTS.md is an instructions file for Codex, OpenCode from ABIvan-Tech/zvec-mcp. It costs 1,264 tokens per session, scanned A, original, MIT.

A workflow guide for the zvec-mcp project, which provides tools and stored project information for coding agents. It explains when to search the project knowledge base and when to use direct file searches.

In plain words
What is it for?
Answering repository questions, searching source code, handling unavailable or empty knowledge-base results, and dealing with stale search-process locks.
Why use it?
It prevents agents from claiming they checked the knowledge base when the search failed, and points them to the right fallback.

Instructions file for CodexOpenCode

Written for Codex and OpenCode: the file is AGENTS.md.

This is ABIvan-Tech/zvec-mcp's own configuration. It tells Codex and OpenCode how to work on zvec-mcp itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything zvec-mcp configures →

Reuse

Borrowing it

Nothing to install: this file belongs to ABIvan-Tech/zvec-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.

Copy the file
curl -O https://raw.githubusercontent.com/ABIvan-Tech/zvec-mcp/main/AGENTS.md
Clone the repo
git clone --depth 1 https://github.com/ABIvan-Tech/zvec-mcp

Made for: Codex, OpenCode.

Wrote this? Show the measurements

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Per session 1,264 This file is loaded in full into every session.
When invoked 1,264 The same file — it is already loaded in full.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Token cost

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.

ModelPer sessionOnce invoked
Fable 5.1 $0.01264 $0.01264
Opus 5.5 $0.00506 $0.00506
Sonnet 5.5 $0.00253 $0.00253
Haiku 4.5 $0.00126 $0.00126

Measured 2mo ago against content hash 07d4df5843d0, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

zvec-mcp AGENTS.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.

AGENTS.md · 71 lines

How it starts

The opening of the file, as written. The whole thing — 71 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Agent Instructions

For repository and implementation questions, first consult the local project knowledge base through the MCP tool search_project_knowledge before doing any broad repository search. If search_project_knowledge returns a tool error or is unavailable, do not silently continue as if the knowledge base had been checked successfully; explicitly mention that the MCP knowledge base was unavailable and then fall back to a targeted grep search. If search_project_knowledge returns no useful results, explain that the knowledge base did not provide a useful hit and then proceed to a focused grep search.

[!NOTE] The database indexes source files only. Files with extensions like .md (documentation), configuration files (package.json, tsconfig.json, vite.config.ts, eslint.config.js), and declaration files (.d.ts) are ignored by design. For these files or queries about general architecture/configs, skip vector search and use grep_search or view_file directly. If the MCP tool throws locking/concurrency errors (e.g. Can't lock collection), it may mean there are stale bridge processes holding the file lock. Proactively list and terminate any stale node zvec-mcp-bridge.js processes. If the index seems outdated or returns zero results on valid codebase queries, call initialize_project_knowledge with force_rebuild: true to regenerate the database.

Architecture: The bridge runs in one of three modes:

  • --daemon --port N — persistent HTTP/SSE daemon (shared by multiple clients)
  • Default (auto) — auto-starts a daemon if none running, otherwise proxies to existing one
  • Legacy stdio — runs standalone (fallback if daemon can't start)

Available MCP Tools

Tool Description
search_project_knowledge Semantic search through the indexed project codebase. Use as first step before broad repository search.
initialize_project_knowledge Create or rebuild the knowledge base index. Call when index is missing, stale, or corrupted.
index_file Force indexing of a specific file immediately. Useful for newly created or modified files.
get_knowledge_status Get health, statistics, and configuration (document count, init state, detected extensions, project type).

Read the full file on GitHub · 71 lines

Changes

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.

  1. 2mo ago First seen · 71 lines · 1,264 tokens per session scan A 07d4df5843d0

Subscribe to this mod's changes

zvec-mcp AGENTS.md is an instructions file published in the GitHub repository ABIvan-Tech/zvec-mcp (9 stars, last pushed 4mo ago), licensed MIT. It adds 1,264 tokens to every session, about $0.0051 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.

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