SKILL

brownfield-retrospective

Run the ECC engineering process retroactively against an existing project slice. Audit current state, reconstruct past decisions, produce a four-axis gap register (thinking, coding practice, missing features, technology selection), then execute fixes forward through the plan-TDD-review pipeline. Use when adopting ECC mid-project, taking over an inherited codebase, or asking what was missed and what would have been built differently from day one.

Target: Software development & testing. Automatically collected · unverified.

Excerpt from the author’s documentation

Extracted from a fixed version of SKILL.md in its original language. This is the author’s documentation; installation, compatibility and runtime results have not been verified by this site.

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Topics in the source

  • Brownfield Retrospective
  • When to Activate
  • When Not to Use
  • The Working Set
  • How It Works
  • Phase 0 — Pick the Entry Point
  • Phase 1 — Present-State Audit
  • Phase 2 — Backward Reconstruction

Run ECC's engineering process retroactively against a project that was built without it. Pick any slice of an existing codebase, audit what exists, reconstruct how it got there, extract a four-axis gap register, then execute the fixes forward through the standard ECC pipeline. The workflow is slice-first: no whole-repo onboarding is required before it is useful, and every phase is re-enterable from a durable artifact on disk. Start in the middle, work backwards, then move forward. Adopting ECC in a repository that already exists and is already shaped User asks to "audit my existing project", "retro this codebase", or "what did we miss?" Taking over, inheriting, or returning to a codebase after a long gap User asks "why is it like this?" followed by "should it stay like this?" A module, feature, or service needs a rethink before the next feature lands on top of it Deciding whether a legacy area should be fixed forward, rewritten, or left documented as-is Greenfield work with no existing code — use planner and tdd-workflow directly Onboarding to spec-driven development without the redesign loop — the spec-miner agent does that on its own A launch go/no-go production-readiness pass —

This is an excerpt. Refer to the complete source and its current requirements.

Source repository
affaan-m/ECC
Source file
skills/brownfield-retrospective/SKILL.md
Fixed revision
d2ef2680594f9a17526a6e1a2e18b3d242c5d17b
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Author: affaan-m/ECC · original repository metadata. Documentation review: Not reviewed. Last source check: 2026-11-09T15:01:43.451Z.

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