thunder-deep-review

thunder-deep-review is a skill for Claude Code from thunderbird/thunderbolt. It costs 0 tokens per session (6,597 once invoked), scanned A, original, MPL-2.0.

A read-only review of a pull request, code difference, or branch against the Thunderbolt project's coding and architecture rules.

In plain words
What is it for?
Use it to inspect changes for issues such as unsuitable abstractions, unnecessary dependencies, unsafe error handling, poor React state or effect usage, missing route splitting, and incorrect data-removal patterns.
Why use it?
It finds design, maintainability, correctness, security, and convention problems that ordinary automated checks may miss.

Skill for Claude Code

Written for Claude Code: installed under .claude/. Also seen: mentions CLAUDE.md; mentions subagents.

About the project

Thunderbolt is an open-source AI client that lets people connect their chosen models and run the client on their own infrastructure, including local or on-premises deployments. It is aimed at organizations and individuals who want to use different model providers while keeping control of their data.

thunderbird/thunderbolt · 4,761 stars · on GitHub · thunderbolt.io

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.

agentmods
npx agentmods add skills/thunderbird/thunderbolt/thunder-deep-review
Any agent
npx skills add thunderbird/thunderbolt --skill thunder-deep-review
Clone the repo
git clone --depth 1 https://github.com/thunderbird/thunderbolt

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 thunder-deep-review

README.md
[![agentmods](https://agentmods.dev/badge/skills/thunderbird/thunderbolt/thunder-deep-review.svg)](https://agentmods.dev/skills/thunderbird/thunderbolt/thunder-deep-review)
Your own site
<a href="https://agentmods.dev/skills/thunderbird/thunderbolt/thunder-deep-review"><img src="https://agentmods.dev/badge/skills/thunderbird/thunderbolt/thunder-deep-review.svg" alt="Measured on agentmods" height="20"></a>
Per session 0 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 6,597 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
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 $0.00000 $0.06597
Opus 5 $0.00000 $0.03299
Sonnet 5 $0.00000 $0.01319
Haiku 4.5 $0.00000 $0.00660

Measured 6d ago against content hash fcdea08ad494, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-05, from the pricing page.

Security

Grade A, and why

thunder-deep-review 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/thunder-deep-review/SKILL.md · 170 lines

How it starts

The opening of the file, as written. The whole thing — 170 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Thunder Deep Review

A read-only senior-grade PR reviewer for thunderbird/thunderbolt. It reproduces the house bar — an architecture-and-taste reviewer first, a linter second. It catches the high-value issues generic bug-bots miss: wrong abstraction layer, coupling, undocumented intent, convention drift, bloat/deps, and "this will haunt us" maintainability costs — alongside real correctness/security bugs.

The "house bar" is a standard, not a person. Never name or impersonate any individual. Encode the bar, not the human.

Deployment context — determine this FIRST

One engine, two products. Detect your mode from OBSERVABLE signals in the invoking prompt, then obey it everywhere the steps below split on mode:

  • CI / gated mode — you are in this mode iff the invoking prompt does any of: supplies a skip-list file path, supplies a deep-mode/bounded-mode flags file path, or requests structured JSON output against a provided schema and states that a downstream precision gate filters your candidates. Here you are the RECALL pass: a downstream precision gate (a second model step) filters your candidates and is allowed to drop most of them — so favor recall. Surface every grounded candidate even when unsure it clears the bar; report marginal or low-certainty findings with confidence: low instead of dropping them. Your output is the structured JSON the invoking prompt defines — no markdown report, no severity trailer.
  • Local / ungated mode — anything else (a developer invoked you ad hoc). There is NO gate behind you: your rendered markdown report (exact format: assets/finding-template.md) is the final artifact, so apply the full filtering pipeline below (Pass B, recall floors, noise suppression, self-validation).

When signals are ambiguous, assume LOCAL mode — an unfiltered candidate dump on a developer is worse than filtering twice.

In both modes: identifying the issue is the job; a suggested fix is optional, never required.

Operating rules (low freedom — always)

Read the full file on GitHub · 170 lines

Files

What ships with it

7 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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 First seen · 170 lines · 0 tokens per session scan A fcdea08ad494

Subscribe to this mod's changes

thunder-deep-review is a skill published in the GitHub repository thunderbird/thunderbolt (4,761 stars, last pushed today), licensed MPL-2.0. It costs nothing until one of its globs matches a file; then it loads 6,597 tokens. 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 2026-08-30.

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