README.md
markdown
| 1 | # Muse — Demo Hub |
| 2 | |
| 3 | > Domain-agnostic version control for multidimensional state. |
| 4 | > Music is the first domain. Code is the second. Genomics, 3D design, and |
| 5 | > spacetime simulation are next. |
| 6 | |
| 7 | Choose a domain to see Muse's full power: |
| 8 | |
| 9 | --- |
| 10 | |
| 11 | ## [Code Tour de Force →](tour-de-force-code.md) |
| 12 | |
| 13 | **12 commands that are strictly impossible in Git.** |
| 14 | |
| 15 | Muse treats code as a typed, content-addressed graph of named symbols — not |
| 16 | a bag of text lines. Every commit stores a symbol-level structured delta. |
| 17 | Every function has a stable identity hash that survives renames and moves. |
| 18 | |
| 19 | | Command | One-line description | |
| 20 | |---------|---------------------| |
| 21 | | `muse symbols` | Every function, class, and method in the snapshot — extracted from real ASTs | |
| 22 | | `muse grep` | Search the symbol graph by name, kind, or language — no false positives | |
| 23 | | `muse query` | Predicate DSL: `kind=function language=Go name~=handle` | |
| 24 | | `muse languages` | Language + symbol-type breakdown across the whole repo | |
| 25 | | `muse blame` | Which commit last touched this exact function? One answer. | |
| 26 | | `muse symbol-log` | Full history of one symbol — renames and moves included | |
| 27 | | `muse detect-refactor` | Classify semantic operations: rename / move / signature / impl | |
| 28 | | `muse hotspots` | Symbol churn leaderboard — which functions change most? | |
| 29 | | `muse stable` | Symbol stability leaderboard — your bedrock, safe to build on | |
| 30 | | `muse coupling` | File co-change analysis — semantic hidden dependencies | |
| 31 | | `muse compare` | Deep semantic diff between any two historical snapshots | |
| 32 | | `muse patch` | Surgical per-symbol modification — the agent interface | |
| 33 | |
| 34 | **Supported languages:** Python, TypeScript, JavaScript, Go, Rust, Java, C, C++, C#, Ruby, Kotlin |
| 35 | |
| 36 | --- |
| 37 | |
| 38 | ## [Music Tour de Force →](tour-de-force-script.md) |
| 39 | |
| 40 | **The reference domain — version control for audio compositions.** |
| 41 | |
| 42 | Muse treats MIDI and MusicXML as structured state. Every note is a semantic |
| 43 | element. Every commit records which bars changed, which instruments were added, |
| 44 | which tempo markers shifted. Three-way merges happen at the note level — |
| 45 | two musicians can independently arrange the same song and merge without conflicts. |
| 46 | |
| 47 | --- |
| 48 | |
| 49 | ## Shared Architecture |
| 50 | |
| 51 | Both domains build on the same engine: |
| 52 | |
| 53 | ``` |
| 54 | Content-addressed object store ← immutable, SHA-256 |
| 55 | Snapshot manifest ← file path → object hash |
| 56 | Structured delta ← typed DomainOp tree (insert / delete / replace / move / patch) |
| 57 | Commit graph ← parent chain with structured deltas on every node |
| 58 | ``` |
| 59 | |
| 60 | The code plugin adds: |
| 61 | |
| 62 | ``` |
| 63 | AST symbol trees ← SymbolRecord (kind, name, body_hash, signature_id, content_id) |
| 64 | Symbol-level diffs ← PatchOp with child InsertOp/DeleteOp/ReplaceOp per symbol |
| 65 | Rename detection ← body_hash match across addresses |
| 66 | Move detection ← content_id match across files |
| 67 | ``` |
| 68 | |
| 69 | Every code-domain command is a consumer of this data. No new storage format. |
| 70 | No new protocol. Just queries over the structured commit history. |
| 71 | |
| 72 | --- |
| 73 | |
| 74 | ## Four Semantic Layers |
| 75 | |
| 76 | | Layer | What it stores | Used by | |
| 77 | |-------|---------------|---------| |
| 78 | | **Object store** | Raw file bytes, content-addressed | All domains | |
| 79 | | **Snapshot manifest** | `file_path → sha256` | `symbols`, `languages`, `compare` | |
| 80 | | **Structured delta** | Typed op tree per commit | `blame`, `hotspots`, `stable`, `coupling`, `detect-refactor`, `symbol-log` | |
| 81 | | **Symbol graph** | AST-parsed `SymbolRecord` per file | `grep`, `query`, `patch` | |
| 82 | |
| 83 | --- |
| 84 | |
| 85 | *Muse v2 · Python 3.11 · zero runtime dependencies except `tree-sitter`* |