Borrowing it
Nothing to install: this file belongs to zircote-plugins/sdlc-quality. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/zircote-plugins/sdlc-quality/main/AGENTS.mdgit clone --depth 1 https://github.com/zircote-plugins/sdlc-qualityWrote 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/instructions/zircote-plugins/sdlc-quality/agents-md)<a href="https://agentmods.dev/instructions/zircote-plugins/sdlc-quality/agents-md"><img src="https://agentmods.dev/badge/instructions/zircote-plugins/sdlc-quality/agents-md/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/instructions/zircote-plugins/sdlc-quality/agents-md"><img src="https://agentmods.dev/badge/instructions/zircote-plugins/sdlc-quality/agents-md.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 | $0.01405 | $0.01405 |
| Opus 5.5 | $0.00562 | $0.00562 |
| Sonnet 5.5 | $0.00281 | $0.00281 |
| Haiku 4.5 | $0.00140 | $0.00140 |
Grade A, and why
sdlc-quality AGENTS.md 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 — 227 lines — stays where its author put it; the contents beside it link to each section on GitHub.
AGENTS.md - OpenAI Codex Guidelines
This file provides guidelines for OpenAI Codex and other AI agents working with the sdlc plugin.
Project Identity
Plugin Name: sdlc
Purpose: Comprehensive Software Development Lifecycle standards and compliance checking
Repository: https://github.com/zircote/sdlc-quality
License: MIT
Quick Context
┌─────────────────────────────────────────────────────────────┐
│ sdlc plugin │
├─────────────────────────────────────────────────────────────┤
│ Build │ Quality │ Testing │ CI/CD │ Security │ Docs │ VCS │
│ ✓ │ ✓ │ ✓ │ ✓ │ ✓ │ ✓ │ ✓ │
└─────────────────────────────────────────────────────────────┘
This plugin validates projects against SDLC best practices across 11 domains.
Agent Guidelines
1. Understand the Domain Model
The plugin uses RFC 2119 severity levels:
- MUST (Critical): Mandatory requirements
- SHOULD (Important): Strong recommendations
- MAY (Suggestion): Optional enhancements
2. Repository Layout
| Path | Purpose |
|---|---|
skills/ |
Domain-specific guidance (build, quality, testing, etc.) |
agents/ |
Autonomous agent definitions for Claude Code |
commands/ |
Slash command implementations |
.github/actions/sdlc-check/ |
GitHub Action for compliance checking |
.github/workflows/ |
CI and audit workflows |
docs/ |
Extended documentation and ADRs |
3. Code Conventions
Shell Scripts:
#!/usr/bin/env bash
set -euo pipefail
# Use functions for organization
my_function() {
local arg="$1"
# Implementation
}
# Export for subshells if needed
export -f my_function
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 · 227 lines · 1,405 tokens per session scan A 34bc1372ba9c
sdlc-quality AGENTS.md is an instructions file published in the GitHub repository zircote-plugins/sdlc-quality (11 stars, last pushed 22d ago), licensed MIT. It adds 1,405 tokens to every session, about $0.0056 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.
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