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.
git clone --depth 1 https://github.com/maxbarsukov/vkr-builderWrote 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.
[](https://agentmods.dev/rules/maxbarsukov/vkr-builder/vkr-development)<a href="https://agentmods.dev/rules/maxbarsukov/vkr-builder/vkr-development"><img src="https://agentmods.dev/badge/rules/maxbarsukov/vkr-builder/vkr-development/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.
<a href="https://agentmods.dev/rules/maxbarsukov/vkr-builder/vkr-development"><img src="https://agentmods.dev/badge/rules/maxbarsukov/vkr-builder/vkr-development.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00000 | $0.00615 |
| Opus 5.5 | $0.00000 | $0.00246 |
| Sonnet 5.5 | $0.00000 | $0.00123 |
| Haiku 4.5 | $0.00000 | $0.00061 |
Grade A, and why
vkr-development 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.
How it starts
The opening of the file, as written. The whole thing — 62 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Changing the code
src/vkr/cli.py commands: parse, orchestrate, render the report
src/vkr/ui.py the only module that writes to the user
src/vkr/progress.py build phases as console steps
src/vkr/logging_setup.py logging -> findings bridge
src/vkr/suppress.py rule names and @suppress directives
src/vkr/engines.py Word / LibreOffice detection, "auto"
src/vkr/md.py, md_lint.py markdown parsing and checks
src/vkr/docx/ document building
src/vkr/pagination.py Word COM and LibreOffice UNO
src/tests/ pytest
Output
-
Only
ui.pywrites to a stream. Library modules calllog.warning(...);logging_setupturns records into findings. Noprint(), no directsys.stderroutsideui.py. -
Give user-facing warnings a rule so they can be suppressed and looked up:
log.warning("could not insert image %s: %s", path, exc, extra={"rule": "image"})and document that name in
suppress.RULES— a test fails on rules that are used but undocumented. -
Message style: lower-case opening, no trailing period, no module prefix.
-
Alignment uses terminal columns:
ui.text_width/ui._pad, neverlen()orljust(). Any emoji is two columns wide and breaks every column after it; the status glyphs are guarded by a test. -
Body text keeps the terminal's default colour so the report works on light and dark themes; colour is for status glyphs, the title and paths.
Commands
Every command renders header → steps/findings → exactly one footer
(footer_ok/footer_warn/footer_fail). Resolve the engine once via
_engine(cfg, args). Argparse never prints its own usage — -h and CLI
errors go through this module's renderer.
Tests
python -m pytest src/tests. UI behaviour is tested by rendering into a
StringIO console (fake TTY for the live region); assert on columns and
shapes, not on colour codes. A change to the report is not finished until
the samples in ui.py's docstring and in both READMEs match reality.
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.
- 1mo ago First seen · 62 lines · 0 tokens per session scan A 20e1030adc5c
vkr-development is a cursor rule published in the GitHub repository maxbarsukov/vkr-builder (9 stars, last pushed 11d ago), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 615 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 2026-08-31.
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