coffee-roaster-mcp: Skill for Claude Code

.claude/skills/hottop-validation/SKILL.md

hottop-validation is a skill for Claude Code from syamaner/coffee-roaster-mcp. It costs 27 tokens per session (2,813 once invoked), scanned A, original, Apache-2.0.

A validation guide for changes that connect software to Hottop coffee-roasting hardware. It defines checks for the driver, command handling, temperature units, session tools, and fail-closed behavior.

In plain words
What is it for?
Use it to prepare and run the guarded Hottop validation command, check required code and tests, and follow the documented hardware setup.
Why use it?
It prevents mock tests alone from being treated as proof that hardware-facing work is ready.

Skill for Claude Code

Written for Claude Code: installed under .claude/. Also seen: mentions AGENTS.md.

This is syamaner/coffee-roaster-mcp's own configuration. It tells Claude Code how to work on coffee-roaster-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 coffee-roaster-mcp configures →

Reuse

Borrowing it

Nothing to install: this file belongs to syamaner/coffee-roaster-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/syamaner/coffee-roaster-mcp/main/.claude/skills/hottop-validation/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/syamaner/coffee-roaster-mcp

Made for: Claude Code.

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.

agentmods badge for hottop-validation

README.md
[![agentmods](https://agentmods.dev/badge/skills/syamaner/coffee-roaster-mcp/hottop-validation/github.svg)](https://agentmods.dev/skills/syamaner/coffee-roaster-mcp/hottop-validation)
Your own site
<a href="https://agentmods.dev/skills/syamaner/coffee-roaster-mcp/hottop-validation"><img src="https://agentmods.dev/badge/skills/syamaner/coffee-roaster-mcp/hottop-validation/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.

agentmods 80×15 button for hottop-validation

Your own site · 80×15
<a href="https://agentmods.dev/skills/syamaner/coffee-roaster-mcp/hottop-validation"><img src="https://agentmods.dev/badge/skills/syamaner/coffee-roaster-mcp/hottop-validation.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 27 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,813 The whole file, excluding the scripts and references it only reads on demand.
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 $0.00027 $0.02813
Opus 5 $0.00014 $0.01406
Sonnet 5 $0.00005 $0.00563
Haiku 4.5 $0.00003 $0.00281

Measured 6d ago against content hash 8a1114786d66, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-10, from the pricing page.

Security

Grade A, and why

hottop-validation 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 6d 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.

.claude/skills/hottop-validation/SKILL.md · 261 lines

How it starts

The opening of the file, as written. The whole thing — 261 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Hottop Validation - RoastPilot

Agents use this skill only to prepare or audit a human-owned plan or evidence. Only a named human operator may execute commands or touch a Pi, serial device, microphone, or Hottop. Agents must never execute commands or recommend proceeding autonomously.

Root AGENTS.md is the current hardware-free gate authority and supersedes any stale gate wording in this skill.

Current Scope

  • Hottop lifecycle, command-loop streaming, packet build/parse, control command state, and temperature-unit handling exist behind the HottopRoasterDriver boundary.
  • The MCP roast-session tools call the configured RoasterDriver boundary while preserving the one-session store semantics and fail-closed behavior.
  • The runnable validation entrypoint is coffee-roaster-mcp hottop-validate.
  • Hardware stories are not complete from mock tests alone.
  • For operator setup details, including the Hottop config block and log output paths, use docs/install-and-hardware-setup.md.

Pre-Validation Gates

The named human operator completes these gates before any Hottop hardware session; an agent may only audit the plan or resulting evidence.

1. Story And Source Readiness

  • The named human operator confirms durable E3 history in docs/state/epics/coffee-roaster-mcp-v0.1.md and the current human-owned validation task; no E3 story is implied active.
  • The named human operator confirms unit and integration coverage exists in tests/test_drivers.py and tests/test_hottop_validation.py.
  • The named human operator confirms fail-closed behavior in src/coffee_roaster_mcp/drivers.py.

2. Operator And Hardware Readiness

  • The named human operator confirms the roaster is supervised for the full run.
  • The named human operator confirms understanding of emergency stop, bean drop, cooling, and physical power-off expectations.
  • The named human operator confirms the serial port is known and the config explicitly sets roaster.driver: hottop_kn8828b_2k_plus.
  • The named human operator confirms that --include-drop is irreversible for loaded beans.

Read the full file on GitHub · 261 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. 6d ago Changed · +31 lines · -9 tokens per session 8a1114786d66
  2. 9d ago First seen · 230 lines · 36 tokens per session scan A 399a67b66039

Subscribe to this mod's changes

hottop-validation is a skill published in the GitHub repository syamaner/coffee-roaster-mcp (0 stars, last pushed 5d ago), licensed Apache-2.0. It adds 27 tokens to every session and 2,813 once invoked, about $0.0001 per session on Opus 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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