docs(decisions): record dynamic evolvable anatomy and morphology (ADR 0004) - #91
Merged
Merged
Conversation
… 0004) Preserves the project owner's long-term architecture direction for Phase 8+ (post-alpha): organisms move from fixed numeric stats to genetically determined, developmentally-derived modular anatomy, with capabilities emerging from body plan. No implementation; explicitly deferred until ecology, genetics, learning, speciation, and persistence/experiment infrastructure are stable. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
Add this suggestion to a batch that can be applied as a single commit.This suggestion is invalid because no changes were made to the code.Suggestions cannot be applied while the pull request is closed.Suggestions cannot be applied while viewing a subset of changes.Only one suggestion per line can be applied in a batch.Add this suggestion to a batch that can be applied as a single commit.Applying suggestions on deleted lines is not supported.You must change the existing code in this line in order to create a valid suggestion.Outdated suggestions cannot be applied.This suggestion has been applied or marked resolved.Suggestions cannot be applied from pending reviews.Suggestions cannot be applied on multi-line comments.Suggestions cannot be applied while the pull request is queued to merge.Suggestion cannot be applied right now. Please check back later.
Summary
Records a design document from the project owner as ADR 0004: a long-term, post-alpha architecture direction where organisms move from fixed numeric stats (
speed,armor,sensorRadius, ...) to genetically determined, developmentally-derived modular anatomy (parts, placement, orientation, connections, capabilities), following the sameGenome ≠ Anatomyseparation philosophy as ADR 0001's simulation/renderer/UI split.No code changes. Status is explicitly "Accepted as a long-term direction — not scheduled to a phase, not implemented," with an explicit "do not implement any part of this during Phases 2-7" note, matching the source document's own framing. It's recorded now for the same reason the engine already carries a no-op
ReproductionSystemand a defined-but-unemittedReproductionAttemptedEvent: naming a destination the team has already agreed on costs nothing today and saves re-deriving it when Phase 8+ arrives.The ADR preserves all 30 sections of the original specification (vision, part system, placement/orientation, radial body geometry, capabilities-from-anatomy, genetic encoding, mutation, heritability, determinism/serialization/observability requirements, constraints, suggested architecture and implementation sequence, design goals, non-goals), adding only: a status header, cross-references to ADRs 0001/0003 and
tools/check-dependency-rules.mjswhere the document's own determinism/architecture requirements already match decisions this repo has made, and short "Alternatives considered" / "Consequences" / "Rollback plan" sections in the house ADR format.Also added a one-line pointer in the (gitignored, local-only)
.dev/roadmap.mdnear the Phase 10 "belongs after the core is proven" note, so it surfaces again during phase planning — not part of this diff since.dev/isn't tracked.Simulation impact
Testing
Not applicable — no code, package, or config changed.
Review notes
🤖 Generated with Claude Code