A Claude Code plugin that drives an autonomous, audited implementation loop for projects with large, comprehensive, or ambiguous specs. Pairs with superpowers.
Use this plugin when:
- Your spec is large, comprehensive, or ambiguous (10+ files, 100+ requirements).
- You want the product in a working, testable state at every iteration boundary.
- You want an autonomous audited loop rather than a single upfront plan.
- The
superpowers:writing-plans→superpowers:subagent-driven-developmentflow has lost the plot on this project before.
Do not use it for small, bounded projects — superpowers:writing-plans is simpler and more appropriate.
The top-level iterative-development skill orchestrates the full lifecycle:
- Extract requirements — chunks the spec, dispatches parallel extraction subagents, and produces stories with proof obligations plus behavior scenarios. Aggregates into per-epic files, a behavior-scenarios corpus, and a coverage ledger.
- Scope the simplest core — defines the walking skeleton iteration (ITER-0000) and an ordered roadmap of follow-on iterations. The walking skeleton must close at least one real journey scenario, not just compile.
- Run iterations — sentinel baseline → scope review → decompose code + evidence tasks → implement → impacted + sentinel scenario runs → wrap up.
- Audit progress — paired auditors run a three-tier review (deep evidence, impacted behavior, sentinel corpus) using parallel adversarial review (PAR). Gaps feed back into the backlog.
- Terminate — when the roadmap is drained and a final behavior-evidence audit passes, the loop exits.
Completion means the product has passing behavior evidence at the correct seam for every externally observable requirement — not just that stories are marked done.
| Skill | Role |
|---|---|
iterative-development |
Top-level orchestrator for the autonomous loop. |
extracting-requirements |
Chunk + parallel-extract + aggregate stories and scenarios from spec collateral. |
scoping-the-simplest-core |
Define walking skeleton and roadmap. |
running-an-iteration |
Execute one sprint end-to-end. |
implementing-tasks |
Per-task implementer with evidence discipline. |
auditing-progress |
PAR-based audits at iteration and corpus level. |
Install from the Prime Radiant marketplace:
/plugin marketplace add prime-radiant-inc/prime-radiant-marketplace
/plugin install iterative-development@prime-radiant-marketplace
Restart Claude Code after installing.
./scripts/run_validation_suite.sh
Individual test files can be run with pytest tests/.
This plugin depends conceptually on skills from the superpowers plugin (brainstorming, TDD, parallel adversarial review, verification-before-completion). Install superpowers alongside iterative-development for the intended experience.
Apache License 2.0. See LICENSE.