toktrack: Skill for Claude Code

.claude/skills/review/SKILL.md

review is a skill for Claude Code from mag123c/toktrack. It costs 34 tokens per session (1,135 once invoked), scanned A, original, MIT.

A code-review workflow for Rust command-line and terminal interface (TUI) applications, using several review agents and a Rust- and Clippy-specific checklist.

In plain words
What is it for?
Use it to review Rust changes, check assumptions from a plan, and look for issues involving speed, blocking work, cached data, and terminal-interface behavior.
Why use it?
It helps catch code problems and project-specific risks without applying web-frontend checks to a terminal application.

Skill for Claude Code

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

This is mag123c/toktrack's own configuration. It tells Claude Code how to work on toktrack 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 toktrack configures →

Reuse

Borrowing it

Nothing to install: this file belongs to mag123c/toktrack. 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/mag123c/toktrack/main/.claude/skills/review/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/mag123c/toktrack

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 review

README.md
[![agentmods](https://agentmods.dev/badge/skills/mag123c/toktrack/review/github.svg)](https://agentmods.dev/skills/mag123c/toktrack/review)
Your own site
<a href="https://agentmods.dev/skills/mag123c/toktrack/review"><img src="https://agentmods.dev/badge/skills/mag123c/toktrack/review/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

Your own site · 80×15
<a href="https://agentmods.dev/skills/mag123c/toktrack/review"><img src="https://agentmods.dev/badge/skills/mag123c/toktrack/review.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 34 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,135 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. Third-party audits
  • NVIDIA SkillSpector warn 7 Sept 2026
SkillSpector: 1 finding, up to high

These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →

  • high Data Exfiltration · line 78
    Code or instructions that leak agent conversation context to external services, potentially exposing sensitive user interactions.
    Fix: Remove any code that sends prompts, responses, or session data externally. Preserve user privacy; never exfiltrate conversation content.
How audits are shown
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 $0.00034 $0.01135
Opus 5 $0.00017 $0.00567
Sonnet 5 $0.00007 $0.00227
Haiku 4.5 $0.00003 $0.00113

Measured 10d ago against content hash e7eefc989a6b, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade A, and why

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 10d 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/review/SKILL.md · 89 lines

How it starts

The opening of the file, as written. The whole thing — 89 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Review (toktrack override)

Follows the global /review multi-agent pattern, with the following overrides:

Override: UX Review Inactive

This project is a terminal TUI app — do not run the UX Review Agent. Run Code Review Agent only.

Override: Code Review Checklist Extension

In addition to the global checklist, append the following to the Code Review Agent prompt:

Critical (PLAN gate)

Category Items
PLAN assumption refutation Does the diff falsify the [agent-inferred]/[unverified-gate] assumptions from the PLAN (falsified → P1+, carry to wrap)

Author Review Gate (P0 — Identity / Matrix)

This repo is OSS and the reviewer is the author (receiving PRs). Generic code health is covered by Rust/TUI/clippy below; this section examines product-specific risks that only the author can validate. Perspective SSOT: session memory feedback_review_perspective.md.

Tier Category Items
reject Identity ① ultra-fast Adding latency·blocking IO·synchronous network to hot path/startup → reject
reject Identity ② persistent cache / data preservation Risk of cache·history loss or corruption → reject. backward-compat·graceful degradation are the means to uphold this
ruthless Irreversible breaking change · data migration · public behavior change
ruthless Environment/state matrix (contributors test only their own machine) OS(paths·home·file locks·Windows) / source schema version(forward new-schema+backward old-format, new source·parser PRs require old-version·unknown-schema fixture) / data shape(empty·large·corrupt·partial·permissions) / locale·TZ·DST / concurrency(read race while source file is being written) / terminal(width·color·TERM) / first-run vs upgrade migration
bias to YES Other features·ideas Stars are the goal — acceptance bias. But if it taxes either core(weighing down hot path·startup·cache paths), request location·approach adjustment only. additive/opt-in/lazy/behind a flag = welcome
lenient Style·naming preferences Linter takes precedence, bikeshed prohibited (uniform strictness = contributor friction → star loss)
signal Direction/growth fit (not a gate) Beyond code quality·conventions, every contribution(issue·PR) also gets a direction-fit verdict in the review output: strengthens wedge (persistent cache/data preservation) / neutral (additive) / dilutes focus (e.g. feature-parity chasing) + 1–2 lines of rationale. Weigh holistically: maintenance cost vs value, real value to target users(AI CLI heavy users), contribution to project direction. Never a reject reason — the two identities above remain the only gates, bias-to-YES stands

Read the full file on GitHub · 89 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. 10d ago First seen · 89 lines · 34 tokens per session scan A e7eefc989a6b

Subscribe to this mod's changes

review is a skill published in the GitHub repository mag123c/toktrack (189 stars, last pushed yesterday), licensed MIT. It adds 34 tokens to every session and 1,135 once invoked, about $0.0002 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 2026-08-30.

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