Borrowing it
Nothing to install: this file belongs to Brad-Edwards/aptl. 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/Brad-Edwards/aptl/main/AGENTS.mdgit clone --depth 1 https://github.com/Brad-Edwards/aptlWrote 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/brad-edwards/aptl/agents-md)<a href="https://agentmods.dev/instructions/brad-edwards/aptl/agents-md"><img src="https://agentmods.dev/badge/instructions/brad-edwards/aptl/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/brad-edwards/aptl/agents-md"><img src="https://agentmods.dev/badge/instructions/brad-edwards/aptl/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 | $0.01395 | $0.01395 |
| Opus 5.5 | $0.00558 | $0.00558 |
| Sonnet 5.5 | $0.00279 | $0.00279 |
| Haiku 4.5 | $0.00139 | $0.00139 |
Grade A, and why
aptl 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 — 134 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Agent Instructions
This repository (APTL — Advanced Purple Team Lab) uses Ground Control for requirements management and workflow automation.
Ground Control Context
This repo's Ground Control project id, workflow commands, SonarCloud
settings, and plan rules live in .ground-control.yaml at repo root
(with larger rule files under .gc/). Agents read it via the
gc_get_repo_ground_control_context MCP tool, which returns the full
workflow config in a single call.
Key facts encoded there today:
- Ground Control project:
aptl - GitHub repo:
Brad-Edwards/aptl - Local test command:
bash tools/run-targeted-tests.sh(changed test files only, or pass explicit test paths) - Local hygiene command:
pre-commit runafter staging the intended changes - Full suites, coverage, whole-tree lint, and whole-tree prose checks: CI/CD only
- SonarCloud project key:
Brad-Edwards_aptl(org:brad-edwards) - Plan rules:
.gc/plan-rules.md
Skill Installation
The canonical agent-neutral implement and review-tests skills are
maintained in the Ground Control repo at skills/implement/SKILL.md
and skills/review-tests/SKILL.md. They are installed at the user
level — not committed per-repo — by running, from a Ground Control
checkout:
bin/install-skills.sh
That script symlinks the canonical skills into:
~/.claude/skills/(Claude Code)~/.codex/prompts/(Codex)
Both Claude and Codex therefore read the same source-of-truth SKILL.md.
Re-run the script after pulling Ground Control to refresh. Use --copy
on hosts without symlink support and --no-codex if Codex isn't
installed locally.
This repo intentionally does not ship .claude/skills/implement/
or .claude/skills/review-tests/ — those were per-repo duplicates
superseded by Ground Control PR #792. Other repo-local skills under
.claude/skills/ (e.g. ship, stage, gh-workflow-monitor,
wave-issue-coverage) remain in place because they are aptl-specific
or not yet promoted to the agent-neutral set.
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 Changed · +4 lines · +78 tokens per session c277a054bf15
- 1mo ago Changed · +8 tokens per session e5fc36f91a16
- 2mo ago First seen · 130 lines · 1,309 tokens per session scan A f5874eea732b
aptl AGENTS.md is an instructions file published in the GitHub repository Brad-Edwards/aptl (25 stars, last pushed 24d ago), licensed MIT. It adds 1,395 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 2026-08-30.
Other instructions, from other repositories
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