vulyk-bootstrap

vulyk-bootstrap is a command for Claude Code from Black-coffe/vulyk. It costs 19 tokens per session (782 once invoked), scanned A, original, MIT.

A coding agent that creates or repairs tests for one planned story. Tests check observable behavior through the program's normal interfaces, including invalid input and other failure cases when required.

In plain words
What is it for?
Use it after implementation or on an under-tested area described by a story. It is for adding behavior tests, covering important edge cases, and fixing test failures caused by the work.
Why use it?
It turns the story's acceptance rules into checks and helps prevent regressions, which are old behaviors accidentally broken by new code. It also checks the wider relevant test suite.

Command for Claude Code

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 commands/black-coffe/vulyk/vulyk-bootstrap
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 vulyk-bootstrap

README.md
[![agentmods](https://agentmods.dev/badge/commands/black-coffe/vulyk/vulyk-bootstrap.svg)](https://agentmods.dev/commands/black-coffe/vulyk/vulyk-bootstrap)
Your own site
<a href="https://agentmods.dev/commands/black-coffe/vulyk/vulyk-bootstrap"><img src="https://agentmods.dev/badge/commands/black-coffe/vulyk/vulyk-bootstrap.svg" alt="Measured on agentmods" height="20"></a>
Per session 19 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 782 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 $0.00019 $0.00782
Opus 5 $0.00010 $0.00391
Sonnet 5 $0.00004 $0.00156
Haiku 4.5 $0.00002 $0.00078

Measured 4d ago against content hash 61c1796dbb53, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

vulyk-bootstrap 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 4d 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/commands/vulyk-bootstrap.md · 17 lines

What it actually says

You are initializing VULYK for this repository. Follow bootstrap/interview.md exactly:

  1. Interview. Ask the questions in the script in 3 batches (context -> conventions -> posture). With --quick in "$ARGUMENTS", infer answers from the repo (package files, CI config, lockfiles, README) and present them for one-shot confirmation instead.
  2. Tailor the constitution. Fill the ## Profile block between the VULYK:PROFILE markers - it arrives blank because a profile copied from another repository is a confident lie, and every caste starts from it. Stack, runner, where source lives, test framework, commit convention, and the last row, which is the one that pays for itself: which configurations actually exist today, and what is deferred and until when. A reviewer that does not know this demands guarantees for deployments nobody has, and the blind acceptance gate cannot state the shape it judged against - both have cost real review rounds. Write it from what you verified in step 1, never from what a README claims. Set TOP_MODEL per the budget answer. Replace every row of the ## Commands table — the shipped rows are VULYK's own (shell/Python syntax checks) and are wrong for any other project; delete them along with the warning blockquote above the table. Use this project's real commands in their quiet form — find the flag that suppresses per-test/per-file chatter (--reporter=dot, -q, --silent, --quiet) rather than pasting the README's default invocation; that output is resent on every later turn. Verify each command actually runs, and if the project genuinely lacks one (no build step, no test runner), write that instead of inventing a plausible command — a verification that always exits 0 is worse than an admitted gap. Write path-scoped conventions into .claude/rules/<area>.md instead of bloating CLAUDE.md.
  3. Prune the roster. Delete agents that cannot apply here (e.g. worker-test if the project has no test runner - and say so loudly), adjust tools lists to the stack. drone-acceptance is the one agent whose removal is never silent: if this project has no way to be run and observed, write that sentence into the summary. "Nothing here can check that the software does what was asked" is a fact the human should own deliberately, not a gap discovered later.
  4. Build the map. Identify top-level modules. Dispatch drone-scout per module - batch up to 4 in parallel - and save each report as memory/map/<module>.md with a last-verified date. For very large repos (1000+ files), map breadth-first: top 8-12 load-bearing modules now, note the rest in memory/memory.md as unmapped territory.
  5. Seed memory. Write memory/memory.md pointer index (<= 60 lines): map files, key wiki notes to create, verification commands, unmapped territory.
  6. Seed wiki. Create 2-4 docs/wiki/ notes for the most load-bearing domains/invariants discovered during mapping (use templates/wiki-note.md).
  7. Commit everything as vulyk: initialize hive for <project> and print a summary: tier examples for THIS codebase, the three-command loop, and any pruned agents.

Do not start any feature work. Bootstrap ends with the commit and summary.

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. 4d ago First seen · 17 lines · 19 tokens per session scan A 61c1796dbb53

Subscribe to this mod's changes

vulyk-bootstrap is a command published in the GitHub repository Black-coffe/vulyk (2 stars, last pushed 14d ago), licensed MIT. It adds 19 tokens to every session and 782 once invoked, about $0.0001 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 2026-08-31.