review-go

review-go is a skill for Claude Code from existential-birds/beagle. It costs 39 tokens per session (1,849 once invoked), scanned A, original, Apache-2.0.

A broad Go backend code-review workflow that first finds changed Go files and then selects checks for technologies such as Bubble Tea, Wish SSH, Prometheus, and tests.

In plain words
What is it for?
Use it to review a branch's changed Go files, detect relevant libraries, and coordinate general, testing, terminal UI, SSH, or metrics reviews.
Why use it?
It prevents reviews from making claims about files outside the change and loads specialised checks only when the code needs them. This makes the review scope and evidence clearer.

Skill for Claude Code

Written for Claude Code: disable-model-invocation in frontmatter. Also seen: mentions subagents.

Part of the beagle-go plugin — 12 skills shipped together

Good fit Use it to review a branch's changed Go files, detect relevant libraries, and coordinate general, testing, terminal UI, SSH, or metrics reviews.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/existential-birds/beagle/review-go
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.

Any agent
npx skills add existential-birds/beagle --skill review-go
Clone the repo
git clone --depth 1 https://github.com/existential-birds/beagle

Made for: Claude Code.

Or install beagle-go, the plugin that ships this one along with the rest of its 12 skills.

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 review-go

README.md
[![agentmods](https://agentmods.dev/badge/skills/existential-birds/beagle/review-go/github.svg)](https://agentmods.dev/skills/existential-birds/beagle/review-go)
Your own site
<a href="https://agentmods.dev/skills/existential-birds/beagle/review-go"><img src="https://agentmods.dev/badge/skills/existential-birds/beagle/review-go/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 review-go

Your own site · 80×15
<a href="https://agentmods.dev/skills/existential-birds/beagle/review-go"><img src="https://agentmods.dev/badge/skills/existential-birds/beagle/review-go.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 39 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,849 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 $0.00039 $0.01849
Opus 5.5 $0.00016 $0.00740
Sonnet 5.5 $0.00008 $0.00370
Haiku 4.5 $0.00004 $0.00185

Measured 1mo ago against content hash 3b0af6d6d550, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

review-go 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.

plugins/beagle-go/skills/review-go/SKILL.md · 206 lines

How it starts

The opening of the file, as written. The whole thing — 206 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Go Backend Code Review

Arguments

  • --parallel: Review each technology area concurrently if the agent supports it (see Step 5)
  • Path: Target directory (default: current working directory)

Step 1: Identify Changed Files

git diff --name-only $(git merge-base HEAD main)..HEAD | grep -E '\.go$'

Pass condition: If this prints nothing, state No Go files in this diff in the summary and skip Steps 2–6; do not invent findings for out-of-scope files.

Step 2: Detect Technologies

# Detect BubbleTea TUI
grep -r "charmbracelet/bubbletea\|tea\.Model\|tea\.Cmd" --include="*.go" -l | head -3

# Detect Wish SSH
grep -r "charmbracelet/wish\|ssh\.Session\|wish\.Middleware" --include="*.go" -l | head -3

# Detect Prometheus
grep -r "prometheus/client_golang\|promauto\|prometheus\.Counter" --include="*.go" -l | head -3

# Detect ZeroLog
grep -r "rs/zerolog\|zerolog\.Logger" --include="*.go" -l | head -3

# Check for test files
git diff --name-only $(git merge-base HEAD main)..HEAD | grep -E '_test\.go$'

Step 3: Load Verification Protocol

Load the review-verification-protocol skill and keep its checklist in mind throughout the review.

Step 4: Load Skills

Load each applicable skill below (open its SKILL.md and follow it).

Always load:

Conditionally load based on detection:

Condition Skill
Test files changed go-testing-code-review
BubbleTea detected bubbletea-code-review
Wish SSH detected wish-ssh-code-review
Prometheus detected prometheus-go-code-review

Pass before Step 5: You have loaded go-code-review (and the Step 3 verification protocol). Load a conditional skill only when its row applies: _test.go in Step 1 diff → testing skill; BubbleTea/Wish/Prometheus skill only if the matching Step 2 grep returned at least one path (if grep returned nothing, do not load that skill).

Read the full file on GitHub · 206 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. 1mo ago First seen · 206 lines · 39 tokens per session scan A 3b0af6d6d550

Subscribe to this mod's changes

review-go is a skill published in the GitHub repository existential-birds/beagle (82 stars, last pushed 1mo ago), licensed Apache-2.0. It adds 39 tokens to every session and 1,849 once invoked, about $0.0002 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 2026-09-16.

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