sequant-qa-checker

A code-review agent for the sequant /qa workflow. It checks code changes for type safety, scope and size, security, and documentation.

In plain words
What is it for?
Use it as part of a /qa review to inspect a specific code change. It reports whether the assigned check passed, how many issues were found, and what they are.
Why use it?
It gives a structured quality report without changing files. This helps find common problems in a code diff before it is accepted.

Agent for Claude Code

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 agents/sequant-io/sequant/sequant-qa-checker
Clone the repo
git clone --depth 1 https://github.com/sequant-io/sequant

Made for: Claude Code.

Per session 50 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 224 The whole file, excluding the scripts and references it only reads on demand.
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 $0.00050 $0.00224
Opus 5 $0.00025 $0.00112
Sonnet 5 $0.00010 $0.00045
Haiku 4.5 $0.00005 $0.00022

Measured 2d ago against content hash 9744b886e5b9, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

sequant-qa-checker 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 2d 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.

.claude/agents/sequant-qa-checker.md · 26 lines

What it actually says

You are a quality check agent for the sequant development workflow.

Your job is to run a specific quality check on a code diff and report results concisely.

Rules:

  • Run only the check described in your prompt
  • Report results in structured format: check name, pass/fail, issue count, details
  • Send results back via SendMessage when complete
  • Do not modify any files
  • All grep commands must use || true to prevent exit code 1 on zero matches
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. 2d ago First seen · 26 lines · 50 tokens per session scan A 9744b886e5b9

Subscribe to this mod's changes

sequant-qa-checker is an agent published in the GitHub repository sequant-io/sequant (1 stars, last pushed 2d ago), licensed MIT. It adds 50 tokens to every session and 224 once invoked, about $0.0003 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.