Borrowing it
Nothing to install: this file belongs to paulomac1000/ha-mcp-readonly. 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/paulomac1000/ha-mcp-readonly/main/AGENTS.mdgit clone --depth 1 https://github.com/paulomac1000/ha-mcp-readonlyWrote 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/paulomac1000/ha-mcp-readonly/agents-md)<a href="https://agentmods.dev/instructions/paulomac1000/ha-mcp-readonly/agents-md"><img src="https://agentmods.dev/badge/instructions/paulomac1000/ha-mcp-readonly/agents-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/paulomac1000/ha-mcp-readonly/agents-md"><img src="https://agentmods.dev/badge/instructions/paulomac1000/ha-mcp-readonly/agents-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 | $0.04471 | $0.04471 |
| Opus 5 | $0.02235 | $0.02235 |
| Sonnet 5 | $0.00894 | $0.00894 |
| Haiku 4.5 | $0.00447 | $0.00447 |
Grade A, and why
ha-mcp-readonly AGENTS.md scanned grade A with 1 finding 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 9d 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.
Makes network callslowCapability
Not a fault in itself. Listed so you know the mod talks to something, and to what.
2. **Test with `curl`** + LLAT on a real HA instance: How it starts
The opening of the file, as written. The whole thing — 376 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Agent Instructions — HA-MCP-Readonly
Read before writing any tool, test, or documentation.
Language & Naming
Mandatory English
- ALL code, comments, docstrings, commit messages, and tool descriptions MUST be in English.
- No Polish, no mixed-language fragments (
np.→e.g.,Zamiast→Instead of). - No Polish characters (ą, ę, ś, ć, ń, ó, ł, ż, ź) in source files.
Generic Names Only
- Use generic, non-culture-specific names in examples and test fixtures:
light.living_roomnotlight.salonarea_id="office"notarea_id="biuro"person.test_usernotperson.pawelzone.home,zone.worknot culture-specific zone names
- Mock data in
tests/fixtures.pyuses:living_room,office,bedroom
Tool Descriptions
- First line of
@mcp.tool()docstring MUST be a complete sentence describing what the tool does. - NO emoji in tool description first lines.
- NO emoji in API response strings (status labels, messages).
- Public tool/function docstrings MUST include meaningful
ArgsandReturnssections when the callable accepts arguments or returns a value; module, class, and exception docstrings MUST NOT contain empty placeholder sections. - Use plain text status labels:
"OK"not"✅ OK","FAILED"not"❌ FAILED".
Parameter Descriptions
- Use
e.g.notnp.for examples. - Examples must use generic entity IDs:
light.living_room,sensor.temperature,person.test_user.
Test Standards
Test Hierarchy
| Suite | Location | Runtime | Requires | Run with |
|---|---|---|---|---|
| Unit | tests/unit/ |
<20s | Nothing | pytest tests/unit/ -q |
| Smoke | tests/smoke/ |
<5s | REST API (ports 9092/9093) + HA_TOKEN | pytest tests/smoke/ -q |
| Integration | tests/integration/ |
~2min | Real HA + HA_TOKEN | pytest tests/integration/ -q |
| E2E | tests/e2e/ |
~30s | Real HA + REST API + HA_TOKEN | pytest tests/e2e/ -q |
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.
- 9d ago First seen · 376 lines · 4,471 tokens per session scan A 8ce2eeaa21db
ha-mcp-readonly AGENTS.md is an instructions file published in the GitHub repository paulomac1000/ha-mcp-readonly (43 stars, last pushed 6d ago), licensed MIT. It adds 4,471 tokens to every session, about $0.0224 per session on Opus 5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
Other instructions, from other repositories
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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
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