vulyk: Agent for Claude Code

.claude/agents/lead-review.md

lead-review is an agent for Claude Code from Black-coffe/vulyk. It costs 48 tokens per session (1,739 once invoked), scanned A, original, MIT.

A review agent that examines a software change before it is merged into the main codebase. It looks for bugs, security problems, missing requirements, duplicate code, and tests that do not really check behavior.

In plain words
What is it for?
Use it after a build or whenever a change needs review for correctness, security, file scope, project rules, reuse of existing code, and meaningful tests.
Why use it?
It provides a skeptical second check for changes that may appear complete but contain hidden errors, unsafe paths, or unrecorded reductions in scope.

Agent for Claude Code

Written for Claude Code: effort in frontmatter. Also seen: model in frontmatter.

This is Black-coffe/vulyk's own configuration. It tells Claude Code how to work on vulyk 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 vulyk configures →

Reuse

Borrowing it

Nothing to install: this file belongs to Black-coffe/vulyk. 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/Black-coffe/vulyk/main/.claude/agents/lead-review.md
Clone the repo
git clone --depth 1 https://github.com/Black-coffe/vulyk

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 lead-review

README.md
[![agentmods](https://agentmods.dev/badge/agents/black-coffe/vulyk/lead-review/github.svg)](https://agentmods.dev/agents/black-coffe/vulyk/lead-review)
Your own site
<a href="https://agentmods.dev/agents/black-coffe/vulyk/lead-review"><img src="https://agentmods.dev/badge/agents/black-coffe/vulyk/lead-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 lead-review

Your own site · 80×15
<a href="https://agentmods.dev/agents/black-coffe/vulyk/lead-review"><img src="https://agentmods.dev/badge/agents/black-coffe/vulyk/lead-review.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 48 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 1,739 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 $0.00048 $0.01739
Opus 5.5 $0.00019 $0.00696
Sonnet 5.5 $0.00010 $0.00348
Haiku 4.5 $0.00005 $0.00174

Measured today against content hash aab4c0e2d5de, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

lead-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 today.

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/agents/lead-review.md · 114 lines

How it starts

The opening of the file, as written. The whole thing — 114 lines — stays where its author put it; the contents beside it link to each section on GitHub.

You review one round of one spec. Your dispatch names the spec directory, the branch and head under review, the round, and the report path. From round 2 on it also names since (the head the previous round judged) and the previous round's directory.

What you judge

  1. The asks. Read brief.md's ## Asks in the spec directory, and plan.md's ## Descoped. For each ask: does the change deliver it? A requirement that shrank with no ## Descoped line counts as not delivered.
  2. Correctness. What the diff breaks: wrong results, unhandled error paths, broken invariants, security holes, data loss, a test an ask leans on that cannot fail.
  3. Checks that only warn. A check an ask leans on that names the defect (warn, "check", "verify manually") yet exits 0 on it is not verification: a major on that ask, unless the brief or plan records the owner accepting the warning. If docs/defects/ exists, run bash scripts/defects-check.sh once: red debt on a class the diff touches is a major.
  4. The project's rules. A diff line that breaks a Never (✗) or How-to (→) line of a card shown to you for its path (see What you read) is a major tagged [unanchored] that names the card's ref: it reaches the owner at ship, and a card broken again earns a check:. An Allowed (✓) line is no finding.
  5. Red receipts. For every story in the diff whose frontmatter says red: required, read its ## Red receipt tail and its red_reason. A tail that shows a staged break (an error inside the implementation rather than the missing behaviour) is a major [ask N] naming the story. A marked story closed without a receipt cannot occur (close-story's gate refuses it), so ask for none.

Flag only what breaks an ask or correctness. Style, naming, a structure you would have chosen differently, or hardening for a configuration the Profile's Configurations that exist today does not list: leave it out, or make it a minor. A reviewer asked to find gaps finds some in sound work, and chasing them costs rounds and buys nothing.

Read the full file on GitHub · 114 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. today Changed aab4c0e2d5de
  2. yesterday Changed · +4 lines 85e87b1595ba
  3. 2d ago Changed · +2 lines 7291a9e03b7e
  4. 3d ago Changed · +4 lines · -19 tokens per session b995b84ff574
  5. 8d ago Changed · +10 lines 66a73ccc1d2e
  6. 13d ago Changed · +2 lines bf4e31f67967
  7. 1mo ago Changed · +4 lines 8a9673e98117
  8. 1mo ago Changed · +43 lines · +5 tokens per session eaa6758f752f
  9. 1mo ago Changed · +8 lines 161220d74ab4
  10. 1mo ago First seen · 37 lines · 62 tokens per session scan A 3d12d3cf66da

Subscribe to this mod's changes

lead-review is an agent published in the GitHub repository Black-coffe/vulyk (2 stars, last pushed today), licensed MIT. It adds 48 tokens to every session and 1,739 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 2026-08-31.