Use when implementing any feature or change that touches more than one file. Use when you're about to write a large amount of code at once, or when a task feels too big to land in one step.
Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
# Incremental Implementation
## Overview
Build in thin vertical slices — implement one piece, test it, verify it, then expand. Never attempt to implement an entire feature in one pass. Each increment should leave the system in a working, testable state. This is the execution discipline that makes large features manageable.
## When to Use
- Implementing any multi-file change
- Building a new feature from a task breakdown
- Refactoring existing code
- Any time you're tempted to write more than ~100 lines before testing
**When NOT to use:** Single-file, single-function changes where the scope is already minimal.
## The Increment Cycle
```
┌──────────────────────────────────────┐
│ │
│ Implement ──→ Test ──→ Verify ──┐ │
│ ▲ │ │
│ └───── Commit ◄─────────────┘ │
│ │ │
│ ▼ │
│ Next slice │
│ │
└──────────────────────────────────────┘
```
For each slice:
1. **Implement** the smallest complete piece of functionality
…
The line at the top of this page pins the label git:20260215.7ea265f, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.
GET https://markdownregistry.com/api/v1/artifacts/art_vcweu274wuscpce7
GET https://markdownregistry.com/api/v1/resolve?ref=lll0k0lad/agent-skills/incremental-implementation
GET https://markdownregistry.com/api/v1/blob/f64d3e94287a4c784439d8db1a04f3674ceafb5c051d513973cf5b92257959c0
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