tinypilot-mcp: Instructions file for Codex

AGENTS.md

tinypilot-mcp AGENTS.md is an instructions file for Codex, OpenCode from tiny-pilot/tinypilot-mcp. It costs 503 tokens per session, scanned A, original, MIT.

A set of AGENTS.md instructions for developing tinypilot-mcp, an MCP server that runs on the user's computer and communicates through standard input and output. It defines product limits, code conventions, and changes that require explicit approval.

In plain words
What is it for?
It is for guiding code changes, tool design, configuration handling, logging, and error messages in the tinypilot-mcp project.
Why use it?
It gives coding agents project-specific rules so they do not add unsupported server, network, fleet, or workflow features.

Instructions file for CodexOpenCode

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

This is tiny-pilot/tinypilot-mcp's own configuration. It tells Codex and OpenCode how to work on tinypilot-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 tinypilot-mcp configures →

Reuse

Borrowing it

Nothing to install: this file belongs to tiny-pilot/tinypilot-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/tiny-pilot/tinypilot-mcp/master/AGENTS.md
Clone the repo
git clone --depth 1 https://github.com/tiny-pilot/tinypilot-mcp

Made for: Codex, OpenCode.

Wrote this? Show the measurements

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README.md
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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.

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Per session 503 This file is loaded in full into every session.
When invoked 503 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 $0.00503 $0.00503
Opus 5.5 $0.00201 $0.00201
Sonnet 5.5 $0.00101 $0.00101
Haiku 4.5 $0.00050 $0.00050

Measured 2mo ago against content hash afd43459a75d, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

tinypilot-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 · 46 lines

What it actually says

Agent development guide

Instructions for AI agents working on tinypilot-mcp. Read Architecture first.

Product constraints

  • Client-side MCP — runs on the user's machine; stdio to MCP host; not on the TinyPilot appliance
  • Host-agnostic — stdio only; no Cursor-specific code
  • Atomic primitives only — no composite workflow tools (paste+Enter bundles, runbooks)
  • Fleet via local config — no network discovery, no TinyPilot fleet API
  • Skill is linked, not bundled — workflow lives in tinypilot-ai-agent-skills
  • Connector is out of scope — not part of this offering

Out of scope (do not add without explicit request)

  • Server-side MCP on the appliance or streamable HTTP transport
  • CMDB, ITSM, orchestration, admin API tools
  • Bundling the skill repo
  • Host-specific code paths

Code conventions

  • Python 3.11+; from __future__ import annotations in library modules
  • Pydantic models for config and tool inputs; flat schemas (no $ref / oneOf)
  • Sync httpx; paste wait blocks intentionally
  • Tools: tinypilot_* prefix; annotations on every tool; actionable error strings
  • Log to stderr only — stdout is MCP protocol
  • Action log: no paste content, no API keys
  • Tests: pytest + pytest-httpx; mock HTTP, not hardware
  • Minimum diff; no new dependencies without good reason
  • Target: TinyPilot Pro 3.2.0+ (API keys; no /api/v1/auth)

When changing code

  1. Read surrounding code; match existing style
  2. Run pytest -v before committing
  3. One logical commit per change (feat:, fix:, docs:, test:, chore:)
  4. Do not commit secrets, tokens, or real device URLs
  5. Do not log to stdout

Escalate (do not guess) when

  • Change requires new tools or dependencies not in pyproject.toml
  • MCP SDK API differs from existing patterns in server.py
  • Architectural change beyond REST primitive wrapping
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 · 46 lines · 503 tokens per session scan A afd43459a75d

Subscribe to this mod's changes

tinypilot-mcp AGENTS.md is an instructions file published in the GitHub repository tiny-pilot/tinypilot-mcp (0 stars, last pushed 2mo ago), licensed MIT. It adds 503 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.

Related

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tinypilot-mcp AGENTS.md next to 6 instructions from other repositories
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vscode copilot-instructions.mdmicrosoft/vscodeInstructions file195kyesterdayMITA3,093GitHub Copilot
deepseek-harness AGENTS.mddeepseek-ai/deepseek-harnessInstructions file274k2d agoMITA4,313Codex, OpenCode