specflow-developlisted
Install: claude install-skill pedropacheco95/cortex
# Specflow: Develop
Implement code from specs. The skill is recursive — it works at any scope (vertical slice,
domain, individual spec) using the same explore → plan → size-check → execute-or-delegate
pattern.
## Core Principles
1. **A test that passes means the code is correct.** Parent agents verify children by
running tests, not by reading their code.
2. **Write the minimum code that passes the tests.** No features beyond what's tested.
No speculative abstractions. No "while I'm here" improvements.
3. **Code ALL gaps, then document them.** When the agent sees something that should be
handled but isn't tested, it codes the solution AND documents the gap. The agent never
stops or blocks on a gap — it always implements and continues. Severity is informational
for the human's review, not a control flow mechanism.
4. **The skill is self-similar.** A slice agent, a domain agent, and a spec agent all run
the same logic. The only difference is scope and which test layer verifies the result.
## Prerequisites
Before this skill runs:
- **Specs exist** — developer specs with rules, acceptance criteria, entity references
- **Tests exist and run** — specflow-tests has been run, including Phase 0 (infrastructure).
Smoke tests pass. Atomic and spec tests exist (they may be failing — the code doesn't
exist yet).
- **Coding conventions exist** — RULES.md and/or project-specific coding skills define
HOW to write code. This skill defines WHAT to implement and