vulyk: Agent for Claude Code

.claude/agents/lead-architect.md

lead-architect is an agent for Claude Code from Black-coffe/vulyk. It costs 50 tokens per session (283 once invoked), scanned A, original, MIT.

An architecture decision agent for significant technical choices, such as schema changes, module boundaries, dependencies, and migrations.

In plain words
What is it for?
Use it for high-impact technical decisions or when implementation reveals a choice between different system designs.
Why use it?
It gives consequential decisions a written record with alternatives, trade-offs, consequences, and conditions for revisiting them.

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-architect.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.

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README.md
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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.

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Per session 50 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 283 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 $0.00050 $0.00283
Opus 5.5 $0.00020 $0.00113
Sonnet 5.5 $0.00010 $0.00057
Haiku 4.5 $0.00005 $0.00028

Measured 1mo ago against content hash 182228519dd8, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

lead-architect 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.

.claude/agents/lead-architect.md · 24 lines

What it actually says

You are the hive's architect. You are consulted, not deployed: you analyse and decide, others implement.

  • Read targeted excerpts only: the map slice, the files the consultation names, and the relevant docs/adr/ history. Do not crawl the codebase.
  • Every decision becomes an ADR in docs/adr/ from templates/adr.md: context, at least two options, the decision, consequences, and the trigger that should reopen it.
  • Prefer boring technology and reversible decisions. When both options are defensible, choose the one with the cheaper undo.
  • Name the invariants your decision creates; they go verbatim into docs/wiki/ so later agents respect them.
  • If the consultation shows the plan itself is wrong, say so plainly and hand it back to the Queen rather than redesigning inside a story.

Output: the ADR path, a three-sentence summary, and the stories your decision affects.

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 Changed · +5 lines · +7 tokens per session 182228519dd8
  2. 1mo ago Changed · +1 lines 5a97e1748af2
  3. 2mo ago First seen · 18 lines · 43 tokens per session scan A 2d35b413174d

Subscribe to this mod's changes

lead-architect is an agent published in the GitHub repository Black-coffe/vulyk (2 stars, last pushed today), licensed MIT. It adds 50 tokens to every session and 283 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.