sequant CLAUDE.md

Project instructions for Sequant covering commits, hooks, skills, and testing. They tell Claude Code how to work within that repository’s rules.

In plain words
What is it for?
They are for guiding agents contributing to the Sequant codebase and following its testing and commit process.
Why use it?
They help prevent invalid commits, unsafe force pushes, misrouted skills, and tests that have not properly checked the claims they protect.

Instructions file

Install

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.

agentmods
npx agentmods add instructions/sequant-io/sequant/claude-md
Clone the repo
git clone --depth 1 https://github.com/sequant-io/sequant
Per session 400 This file is loaded in full into every session.
When invoked 400 The same file — it is already loaded in full.
Security scan A 0 findings. Scan, not verified.
Origin original No closer match found in the catalogue.
Token cost

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.

ModelPer sessionOnce invoked
Fable 5 $0.00400 $0.00400
Opus 5 $0.00200 $0.00200
Sonnet 5 $0.00080 $0.00080
Haiku 4.5 $0.00040 $0.00040

Measured yesterday against content hash 47c02c14db48, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

sequant CLAUDE.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 yesterday.

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.

CLAUDE.md · 18 lines

What it actually says

Sequant

Commit Rules

  • Do NOT add Co-Authored-By lines to any commits in this repository.

Hooks

Skills

  • When invoking a sequant skill via Skill(skill: "<name>", ...) from inside another sequant skill, qualify names that collide with Anthropic top-level skills as Skill(skill: "sequant:<name>", ...). Bare colliding names silently misroute to Anthropic's version. Enforced in CI by npm run lint:skill-calls (scripts/lint-skill-calls.ts). See #562 / #568.

Testing

  • Gate tests ship with a recorded mutation result. A test whose job is to gate a claim — a fixture exists, a skill section is present, a flag is wired — must be mutation-verified before it counts as coverage: delete the thing it asserts, confirm exactly that test fails, restore, and record the result using the Mutation-verified: AC-N — <mutation>; <test> failed; restored. marker format (machine-anchored as <!-- SEQUANT_MUTATION: {"ac":"AC-N","mutation":"...","failedTest":"..."} -->) in the PR body — /qa §6i parses and enforces this record for gate-test ACs. Scope file-reading assertions to the delimited region they mean to check; matching the whole file lets a doc header or comment satisfy the assertion. See #830, where deleting the injection fixture's payload left the suite green, and #939, which promoted this record from prose to a parseable gate.
Changes

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.

  1. yesterday First seen · 18 lines · 400 tokens per session scan A 47c02c14db48

Subscribe to this mod's changes

sequant CLAUDE.md is an instructions file published in the GitHub repository sequant-io/sequant (1 stars, last pushed 2d ago), licensed MIT. It adds 400 tokens to every session, about $0.0020 per session on Opus 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.