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.
npx agentmods add instructions/tslateman/duet/claude-mdgit clone --depth 1 https://github.com/tslateman/duetWrote 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/tslateman/duet/claude-md)<a href="https://agentmods.dev/instructions/tslateman/duet/claude-md"><img src="https://agentmods.dev/badge/instructions/tslateman/duet/claude-md.svg" alt="Measured on agentmods" 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 | $0.01133 | $0.01133 |
| Opus 5 | $0.00566 | $0.00566 |
| Sonnet 5 | $0.00227 | $0.00227 |
| Haiku 4.5 | $0.00113 | $0.00113 |
Grade B, and why
duet CLAUDE.md scanned grade B with 1 finding 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 3d 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.
Unrestricted tool accessmediumExcessive agency
A wildcard tool grant or "run any command" leaves no least-privilege boundary at all.
- `allowed-tools`: Optional. Omit to allow all tools How it starts
The opening of the file, as written. The whole thing — 122 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Duet
Claude Code plugin for reflection, code quality, writing, and design. Markdown only, no build system.
Lint
markdownlint commands/**/*.md skills/**/SKILL.md
Project Structure
commands/
capture-memory.md Capture learnings to MEMORY.md
lint.md Run markdownlint on files
memory-audit.md Audit project memory files for staleness
ponder.md Surface a question worth sitting with
probe.md Probe recent changes with pointed questions
skills/
FRAMEWORKS.md Framework-to-skill index
adr/ Architecture Decision Records (Nygard)
automagic-problem-discovery/ Friction audit that ends in a built tool (5 Whys)
caveman/ Ultra-compressed output mode (~75% token reduction)
debrief/ Review agent work, surface loose ends
debugging/ Systematic debugging (Agans)
design/ Intentional design (visual, API, system)
excalidraw/ Programmatic Excalidraw diagrams
grill-with-docs/ Interview-driven design with CONTEXT.md/ADR upkeep
ia/ Information architecture (Rosenfeld + Diataxis)
improve-codebase-architecture/ Find deepening opportunities (Ousterhout + Feathers)
mermaid/ Mermaid.js diagrams for GitHub markdown
naming/ Naming as design diagnostic (Benner + Bloch)
performance/ Profiling and optimization (Knuth)
prose/ Strunk's Elements of Style for all writing
research/ Systematic technical investigation
retro/ Session retrospective
review/ Structured code review with context capture
sweep/ Post-op audit for artifacts, damage, stale refs
testing/ Test strategy (Beck's Test Desiderata)
vamp/ Survey the project, choose what to play next
vibe-check/ Judgment linter for vibe-coded output
visual-recap/ Structured visual recap of a diff (BuilderIO)
writing-great-skills/ Reference for writing skills well (mattpocock)
zoom-out/ Map callers and neighbors before reading details
agents/
code-simplifier.md Refine code for clarity and maintainability
statusline/
statusline-command.sh Lean status bar (dir, git, model, context, vim)
scripts/
generate-readme.sh Auto-generate README tables from source
evals/
evals.json Master eval registry (generated from the scenario tree)
run.sh Eval runner (with/without skill + grader)
<skill>/<scenario>/ 43 scenarios covering 14 of the 25 skills; vibe-check has 4, the rest 3 each
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.
- 3d ago First seen · 122 lines · 1,133 tokens per session scan B 2ca393349fcf
duet CLAUDE.md is an instructions file published in the GitHub repository tslateman/duet (1 stars, last pushed 7d ago), licensed MIT. It adds 1,133 tokens to every session, about $0.0057 per session on Opus 5. A static security scan graded it B with 1 finding (unrestricted tool access). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.
Other instructions, from other repositories
task-pipeline CLAUDE.md
Claude Code instructions for SpaiR/task-pipeline, covering claude.md, quick orient, invariants — don't break these when editing skills, editing protocol — quick rules and commit format.
dw-solo-skills AGENTS.md
AGENTS.md instructions for dominikwozniak/dw-solo-skills, covering dw-solo-skills — agent instructions, layout — and the one rule, the loop, commands and before you push.
workinggenius AGENTS.md
Instructions for donald-ada/workinggenius, covering working genius — repository instructions, releasing and conventions.
superpowers-graph CLAUDE.md
Claude Code instructions for RonMizrahi/superpowers-graph, covering superpowers-graph — repository guide, sources of truth, changing the graph — the eval ships with the change and rules that are not obvious from the code.
cadence CLAUDE.md
Claude Code instructions for sentasity/cadence, covering cadence repo conventions, config reads go through the resolver and tests.
good-bad-ugly AGENTS.md
AGENTS.md instructions for XyndoX/good-bad-ugly, covering good-bad-ugly — tiered multi-agent orchestration, tiers, the loop, big features: spec → plan → execute and external-system discipline.