Borrowing it
Nothing to install: this file belongs to latchkey-dev/gusset. 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/latchkey-dev/gusset/main/CLAUDE.mdgit clone --depth 1 https://github.com/latchkey-dev/gussetWrote 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/latchkey-dev/gusset/claude-md)<a href="https://agentmods.dev/instructions/latchkey-dev/gusset/claude-md"><img src="https://agentmods.dev/badge/instructions/latchkey-dev/gusset/claude-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/latchkey-dev/gusset/claude-md"><img src="https://agentmods.dev/badge/instructions/latchkey-dev/gusset/claude-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 | $0.00638 | $0.00638 |
| Opus 5.5 | $0.00255 | $0.00255 |
| Sonnet 5.5 | $0.00128 | $0.00128 |
| Haiku 4.5 | $0.00064 | $0.00064 |
Grade C, and why
gusset CLAUDE.md scanned grade C with 2 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 2mo ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Downloads and executes remote codehighSupply chain
curl | sh runs whatever the server returns today, which is not necessarily what it returned when this was reviewed.
latchkey run --timeout 900 'curl -LsSf https://astral.sh/uv/install.sh | sh >/dev/null 2>&1; export PATH=$HOME/.local/bin:$PATH; uv sync -q; uv run pytest -q' Makes network callslowCapability
Not a fault in itself. Listed so you know the mod talks to something, and to what.
latchkey run --timeout 900 'curl -LsSf https://astral.sh/uv/install.sh | sh >/dev/null 2>&1; export PATH=$HOME/.local/bin:$PATH; uv sync -q; uv run pytest -q' How it starts
The opening of the file, as written. The whole thing — 51 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Gusset — development guide
Gusset develops Gusset. This repo is its own first customer: the custodian
runs on our PRs (see gusset.toml), and the dev loop below is mandatory
for humans and agents alike — every workflow pain point found here is a
product bug worth fixing.
The dev loop
- Before changing shared code, ask Gusset for the blast radius:
Use the verified impact list as the checklist of call sites to update.gusset index . --db .gusset/graph.db gusset impact --symbol <qualname> --db .gusset/graph.db --yes # or after editing: gusset impact --diff HEAD --db .gusset/graph.db --yes - Test locally:
uv run pytest -q— no green, no commit. - Verify on a clean machine (catches deps/caching assumptions your
working tree hides) before pushing anything substantial:
latchkey run --timeout 900 'curl -LsSf https://astral.sh/uv/install.sh | sh >/dev/null 2>&1; export PATH=$HOME/.local/bin:$PATH; uv sync -q; uv run pytest -q' - Push and let the custodian review: the Gusset Action comments the
blast radius on the PR; CI runs on Latchkey runners (
latchkey-small). - If CI fails and self-heal couldn't fix it: the Latchkey MCP server
(setup: docs/howto/autonomous-stack.md) exposes
list_failed_runs/get_failure_bundlefor triage,dispatch_workflowto re-fire, andrun_jobfor ad-hoc clean-runner commands.
House rules
- The graph is the oracle: never let a workflow treat model output as
truth. New workflows follow
docs/howto/write-a-workflow.mdand the 8-point checklist indocs/explanation/graph-engineering.md. probe/is the only module allowed to import pandaprobe; everything degrades to off without credentials.- No LLM code in
oracle/orgraph/, ever. evals/results are append-only history — rerun, don't rewrite.- Every friction point in this loop goes in
DOGFOOD.md— it is the product backlog the tool earns by being used, and it is public: write entries as honestly as if a stranger will read them, because one will.
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.
- 2mo ago First seen · 51 lines · 638 tokens per session scan C 817d8fab2926
gusset CLAUDE.md is an instructions file published in the GitHub repository latchkey-dev/gusset (5 stars, last pushed 2mo ago), licensed MIT. It adds 638 tokens to every session, about $0.0026 per session on Opus 5.5. A static security scan graded it C with 2 findings (downloads and executes remote code, makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.
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