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v2.2.1 — Impact Analysis, PR Context, Anchor Reconciler & Architecture Hardening

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@harshsinghmp harshsinghmp released this 03 Sep 08:00
· 436 commits to main since this release
v2.2.1
b51cc12

🚀 Muse Memory v2.2.1 — Impact Analysis, PR Context, Anchor Reconciler & Architecture Hardening

Muse Memory v2.2.1 brings pre-flight code and memory impact analysis, automated pull request context generation, interactive code anchor reconciliation, microsecond latency benchmarking, and critical security and concurrency hardening from a rigorous Linus Torvalds-style code review.

💥 Flagship Features (v2.2.0)

1. Unified Code & Memory Impact Analysis (memory code-impact)

  • Synthesizes AST code callers, affected test suites, linked memories, living ADRs, negative anti-patterns, and active constraints into a unified pre-flight report.
  • Computes a composite Risk Score (0–100) and categorical Risk Level (LOW, MEDIUM, HIGH, CRITICAL) with actionable mitigation recommendations before modifying code.
  • Available via CLI (memory code-impact <file> [--symbol <name>]) and MCP tool (muse_code_impact).

2. PR & Change Context Generator (memory pr-context)

  • Automatically analyzes git diffs against a base branch, linking touched code anchors, respected ADRs, active project constraints, and blast radius.
  • Generates rich GitHub-ready Markdown pull request descriptions with verification checklists and merge promotion proposals.
  • Available via CLI (memory pr-context [--base main] [--out <file>]) and MCP tool (muse_pr_context).

3. Interactive Code Anchor Reconciler (memory reconcile)

  • Audits code anchors across memories, pruning dead anchors, refreshing structural hashes for drifted code, and marking abandoned memories stale.
  • Supports --dry-run, --prune, --mark-stale, --update-hashes, and MCP tool (muse_reconcile_anchors).

4. Repeatable Speed, Quality & ROI Benchmark Suite (memory benchmark)

  • Measures microsecond in-process cache reads (P50 < 4µs), SQLite FTS5 BM25 search, knapsack token packing, contradiction rates, and compression ratios in a clean ASCII scoreboard.
  • Available via CLI (memory benchmark [--iterations N] [--budget N]).

5. Complete Shipped Agent Skills Roster

  • Added 5 new turnkey skills to .agents/skills/:
    • muse-health: Unified 5-pillar architectural health gate.
    • muse-drift: Bidirectional doc-to-code drift auditor.
    • muse-why: Autonomous historical "Why" rationale explainer.
    • muse-sync: Cross-agent P2P gossip sync governor.
    • muse-mesh: Multi-repo and monorepo cross-project mesh.

🛡️ Linus Torvalds Code Review Hardening & Bug Fixes (v2.2.1)

  • Command Injection Hardening: Replaced shell string invocation in generatePrContext (src/compaction/pr-context.ts) with direct argument array execution via execFileSync("git", ...) and validated git reference names against strict identifier patterns (/^[a-zA-Z0-9._\/-]+$/).
  • SQLite Concurrency & Lock Contention: Configured PRAGMA busy_timeout = 5000; and PRAGMA foreign_keys = ON; in both Bun and Node SQLite database drivers (src/sqlite.ts), preventing immediate SQLITE_BUSY crashes in multi-agent and concurrent workflows.
  • Store Listing O(N) Stat Storm: Optimized list(store) (src/store.ts) to query indexed SQLite records directly and discover external YAML files via single-pass readdirSync, eliminating thousands of redundant synchronous filesystem statSync calls.
  • Accurate Benchmark Cold Startup: Corrected cold startup latency measurement in runMemoryBenchmark (src/benchmark/suite.ts) to benchmark actual unprimed store opening and initialization instead of in-memory array property access.
  • Dual-Write Persistence Observability: Replaced silent error swallowing in save(store, entry) (src/store.ts) with structured warning logs when YAML filesystem persistence fails.
  • Impact Analysis Precision: Tightened ADR matching in analyzeMemoryCodeImpact (src/intelligence/impact.ts) with normalized path checks, exact code anchor matching, and regex word boundaries, eliminating false-positive risk inflation on common filenames.
  • Atomic Reconciler Transactions: Wrapped anchor reconciliation writes in reconcileCodeAnchors (src/health/reconcile.ts) inside an atomic SQLite transaction (BEGIN TRANSACTION ... COMMIT).

🧪 Verification & Evidence

  • Test Suite: 497 tests passed cleanly across 84 files (bun test, 2,190 assertions).
  • TypeScript: tsc --noEmit checked with 0 errors.
  • Production Build: bun run build completed cleanly (dist/index.js 1.48 MB).
  • Vibeguard SecretScan: Zero credentials or private keys leaked in codebase.
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