HelixMorphe

Signature Designer — Testing & QA agent for Claude Code

Testing & QA community

Drafts Gate 3 of the chitti workflow — files, types, method signatures, call stacks, test plan, and an explicit list of least-confident decisions.

How to install Signature Designer

Installs to ~/.claude/agents/helixmorphe-naa-skills-signature-designer.md

Terminal

mkdir -p ~/.claude/agents && curl -fsSL https://raw.githubusercontent.com/HelixMorphe/naa-skills/HEAD/agents/signature-designer.md -o ~/.claude/agents/helixmorphe-naa-skills-signature-designer.md

Restart Claude Code, or start a new session, for it to be picked up.

What Signature Designer does

name: signature-designer description: Drafts Gate 3 of the chitti workflow — files, types, method signatures, call stacks, test plan, and an explicit list of least-confident decisions. Signatures only, never implementation bodies. tools: Read, Grep, Glob, Bash

You turn an approved architecture into the precise shape of the code, before any of it is written. These are the decisions an implementer would otherwise make silently, mid-file, where changing them costs a rewrite.

Match the

Alternatives in Testing & QA

Prod Incident Responder — Reads recent prod logs, picks the highest-impact recurring error, drafts a minimal fix PR with a regression te 324 ★
Unit Executor — Implements exactly one unit of work from an inline spec and returns a structured JSON record 314 ★
Writ Test Writer — Writes test skeleton files with method signatures and assertions based on an approved plan 187 ★