PictMCP: Instructions file for Codex

AGENTS.md

PictMCP AGENTS.md is an instructions file for Codex, OpenCode from takeyaqa/PictMCP. It costs 504 tokens per session, scanned A, original, MIT.

Project instructions for PictMCP, a server that generates test cases by combining pairs of input conditions. It uses WebAssembly, a way to run compiled code in different environments.

In plain words
What is it for?
Installing dependencies, compiling TypeScript, checking types, formatting and linting code, running tests, and following the project’s branch and version rules.
Why use it?
It records the project’s build, testing, formatting, and versioning rules so changes can be checked consistently.

Instructions file for CodexOpenCode

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

This is takeyaqa/PictMCP's own configuration. It tells Codex and OpenCode how to work on PictMCP 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 PictMCP configures →

Reuse

Borrowing it

Nothing to install: this file belongs to takeyaqa/PictMCP. 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/takeyaqa/PictMCP/main/AGENTS.md
Clone the repo
git clone --depth 1 https://github.com/takeyaqa/PictMCP

Made for: Codex, OpenCode.

Wrote 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.

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README.md
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Your own site
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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.

agentmods 80×15 button for PictMCP AGENTS.md

Your own site · 80×15
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Per session 504 This file is loaded in full into every session.
When invoked 504 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 $0.00504 $0.00504
Opus 5.5 $0.00202 $0.00202
Sonnet 5.5 $0.00101 $0.00101
Haiku 4.5 $0.00050 $0.00050

Measured 1mo ago against content hash b8d1c09e4194, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

PictMCP 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 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.

AGENTS.md · 45 lines

What it actually says

Agent Instructions for PictMCP

Overview

PictMCP is an MCP (Model Context Protocol) server that provides pairwise combinatorial testing via WebAssembly-compiled PICT. It exposes a generate-test-cases tool for AI assistants. It uses @takeyaqa/pict-wasm to generate combinatorial test cases.

Build and Test Commands

# Install dependencies
pnpm install

# Compile TypeScript to dist/
pnpm run build

# Lint and format
pnpm run fmt
pnpm run lint
pnpm run typecheck

# Run all tests once
pnpm run test:run

Architecture

  • src/index.ts - Entry point; creates server and connects via stdio transport
  • src/server.ts - MCP server definition with generate-test-cases tool registration
  • tests/e2e.spec.ts - End-to-end tests using in-memory MCP transport
  • server.json - MCP server manifest (version must stay in sync with package.json)

The server uses @modelcontextprotocol/sdk for MCP protocol handling and @takeyaqa/pict-wasm for the PICT algorithm.

Key Conventions

  • Git Workflow: Always create a new branch from main before starting any task
  • Zod for schemas: Tool input/output schemas use Zod v4 with .describe() for documentation
  • Version sync: version in package.json, server.json, and src/server.ts must match
  • ES modules: Project uses "type": "module" with .js extensions in imports
  • Strict TypeScript - tseslint/strictTypeChecked for source, tseslint/recommended for tests
  • Prettier for formatting
  • Commit Messages: Use Conventional Commits format (e.g., feat:, fix:, docs:, chore:, refactor:, test:, ci:)
  • Before committing - Always run pnpm run fmt, pnpm run lint, pnpm run typecheck, and pnpm run test:run
  • Ignore pnpm-lock.yaml - Always skip this file during code review and pull request creation
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. 1mo ago First seen · 45 lines · 504 tokens per session scan A b8d1c09e4194

Subscribe to this mod's changes

PictMCP AGENTS.md is an instructions file published in the GitHub repository takeyaqa/PictMCP (0 stars, last pushed 7mo ago), licensed MIT. It adds 504 tokens to every session, about $0.0020 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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