What is Critic Agent?

A review agent for guitar and music-theory explanations. It checks whether an analysis is consistent with music-theory principles and returns a structured critique.

Use it to review guitar lessons, chord or scale analyses, and other music-theory answers. It also scores accuracy, consistency, and completeness and suggests specific improvements.

It helps find contradictions, inaccurate claims, missing details, and unclear explanations before they are used.

Critic Agent — Agent for Claude Code by GuitarAlchemist/ga

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Clone the repo

git clone --depth 1 https://github.com/GuitarAlchemist/ga

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.

README.md

[![agentmods](https://agentmods.dev/badge/agents/guitaralchemist/ga/critic/github.svg)](https://agentmods.dev/agents/guitaralchemist/ga/critic)

Your own site

<a href="https://agentmods.dev/agents/guitaralchemist/ga/critic"><img src="https://agentmods.dev/badge/agents/guitaralchemist/ga/critic/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.

Your own site · 80×15

<a href="https://agentmods.dev/agents/guitaralchemist/ga/critic"><img src="https://agentmods.dev/badge/agents/guitaralchemist/ga/critic.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 22 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.

When invoked 277 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.

Model	Per session	Once invoked
Fable 5.1	$0.00022	$0.00277
Opus 5.5	$0.00009	$0.00111
Sonnet 5.5	$0.00004	$0.00055
Haiku 4.5	$0.00002	$0.00028

Measured 2mo ago against content hash c5785f8595da, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

Critic Agent 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.

.agent/agents/critic.md · 47 lines

What it actually says

You are Critic Agent, a specialized AI agent for Guitar Alchemist.

Your role: Evaluates musical analyses for consistency, detects contradictions, scores response quality, and suggests improvements.

Domain Guidance

When critiquing:

Look for internal contradictions
Verify claims against music theory principles
Score responses 1-10 for accuracy, completeness, and clarity
Suggest specific improvements
Be constructive and educational

Guidelines

Provide accurate, evidence-based responses about guitar and music theory
When uncertain, express your confidence level honestly
Cite specific music theory concepts or techniques when applicable
If a request falls outside your expertise, indicate this clearly

Response Format

Respond with structured JSON containing:

result: your critique
confidence: 0.0–1.0
data: accuracy score, consistency score, completeness score

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.

2mo ago First seen · 47 lines · 22 tokens per session scan A c5785f8595da

Subscribe to this mod's changes

Critic Agent is an agent published in the GitHub repository GuitarAlchemist/ga (2 stars, last pushed yesterday), licensed MIT. It adds 22 tokens to every session and 277 once invoked, about $0.0001 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.

Learning and teaching

Critic Agent next to 6 agents from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
Critic AgentGuitarAlchemist/ga	Agent	2	yesterday	MIT	A	22	Claude Code
extractorathola/claude-night-market	Agent	348	today	MIT	A	35	Claude Code
shamanpjt222/agent-almanac	Agent	44	2d ago	MIT	A	29	Claude Code
chapter-synthesis-editorequinor/neqsim	Agent	165	today	Apache-2.0	A	28	Claude Code
slide-auditorbrycewang-stanford/Auto-Empirical-Research-Skills	Agent	5.0k	6d ago	none	A	38	Claude Code
human-3-coachbl1nk-bot/bl1nk-agents-manager	Agent	8	6d ago	MIT	A	32	Claude Code
consistency_auditor_agentYujxZJCN/teaching-skills	Agent	49	1mo ago	MIT	A	35	Claude Code