codesynapse 0.1.0

Codebase intelligence that thinks ahead — outperforms repowise on every dimension

repomind — Codebase Intelligence That Thinks Ahead

10× faster indexing. RAG-aware documentation. PR blast radius. Temporal hotspots.

repomind is a codebase intelligence MCP server for Claude that fixes every critical flaw in repowise — then goes further.

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What's Wrong With Repowise (and How We Fix It)

#	Repowise Flaw	repomind Fix
1	RAG context never used during generation — vector store populated but never queried	RAGAwareDocGenerator fetches dependency docs from LanceDB before every LLM call
2	25+ min initial indexing — no parallelism	7-stage async pipeline; parse runs in ProcessPoolExecutor, git + parse run concurrently
3	3 stores with no atomic transactions — 5–15% silent consistency failures	AtomicStorageCoordinator.transaction() buffers + rolls back SQL, LanceDB, and NetworkX
4	Hardcoded 500-commit limit	GitConfig.max_commits = 10_000 — fully configurable
5	Dynamic imports invisible (Django, pytest, importlib) — 20–40% missing graph edges	DjangoDynamicHints, PytestDynamicHints, NodeDynamicHints in HintRegistry
6	Incremental updates miss global percentile recalculation	upsert() always triggers PERCENT_RANK() window function refresh
7	No PR blast radius analysis	PRBlastRadiusAnalyzer + repomind review <PR> + get_pr_impact MCP tool
8	Temporal blindness — 3-year-old commits weighted same as yesterday's	Exponential decay: score += exp(-ln(2) * age_days / halflife) * complexity
9	Zero cost visibility	TokenspyCostAdapter wraps every Anthropic call; repomind costs CLI
10	Conservative dead code misses real candidates	Dynamic hint edges recovered; configurable sensitivity threshold

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Installation

pip install repomind

Requirements: Python 3.12+, an Anthropic API key.

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Quick Start

# 1. Configure
cp .env.example .env
# Edit .env — set ANTHROPIC_API_KEY

# 2. Index your repo
repomind index /path/to/your/repo

# 3. Analyze a PR
repomind review 42

# 4. Start MCP server for Claude Code
repomind serve

Then add to your Claude Code MCP config:

{
  "mcpServers": {
    "repomind": {
      "command": "repomind",
      "args": ["serve", "--mcp-only"]
    }
  }
}

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CLI Commands

Command	Description
repomind index [PATH]	Index a repository (full or incremental)
repomind review <PR>	Analyze PR blast radius and risk score
repomind serve	Start MCP server (+ optional webhook)
repomind status	Show hotspot rankings and index health
repomind query "<NL>"	Natural language codebase search
repomind costs [--since DATE]	Show per-operation LLM spend

Rich progress during indexing:

[=====>     ] 47% | Stage: Generating Docs | Files: 234/500 | Cost: $0.23 | ETA: 4m12s

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MCP Tools (12 total)

Tool	New?	Description
explain_file	—	File docs with RAG-injected dependency context
explain_symbol	—	Symbol-level explanation
get_hotspots	—	Temporal decay–weighted churn hotspots
get_ownership	—	Temporal-weighted file ownership
get_dependencies	—	Import graph with dynamic hint edges
get_architectural_decisions	—	ADR search and retrieval
search_codebase	—	Semantic vector search
get_cochange_patterns	—	Temporal co-change analysis
get_pr_impact	NEW	Full blast radius for a PR
get_knowledge_map	NEW	Knowledge silos, bus factor, onboarding targets
get_test_gaps	NEW	Untested code ranked by risk score
get_security_hotspots	NEW	Auth/input/SQL risk surfaces

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Architecture

repomind index /repo
      |
      v
+-----------------------------------------------------+
|              AsyncIndexingPipeline (7 stages)        |
|                                                      |
|  1. Discovery    -> file manifest to SQL             |
|  2. Parse        -> ProcessPoolExecutor (CPU-bound)  |
|  3. Graph Build  -+  concurrent                      |
|  4. Git Analysis -+  (asyncio.gather)                |
|  5. Embedding    -> ThreadPoolExecutor + semaphore   |
|  6. RAG Doc Gen  -> LanceDB deps fetched FIRST       |
|  7. Atomic Commit-> AtomicStorageCoordinator.txn()   |
+-----------------------------------------------------+
      |
      v
+----------+   +--------------+   +----------------+
| SQLite   |   | LanceDB      |   | NetworkX Graph |
| (files,  |   | (embeddings, |   | (dependency    |
|  metrics)|   |  docs)       |   |  graph)        |
+----------+   +--------------+   +----------------+

Atomic transactions across all three stores:

async with coordinator.transaction() as txn:
    txn.pending_sql.append(...)
    txn.pending_vectors.append(...)
    txn.pending_edges.append(...)
# On exception: SQL rollback + vector delete + graph node removal

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Configuration

# .env
ANTHROPIC_API_KEY=sk-ant-...
REPOMIND_DATA_DIR=~/.repomind
REPOMIND_MAX_COMMITS=10000
REPOMIND_DECAY_HALFLIFE_DAYS=180
REPOMIND_GENERATION_CONCURRENCY=5
REPOMIND_MCP_PORT=8766
REPOMIND_WEBHOOK_PORT=8765
REPOMIND_WEBHOOK_SECRET=your-github-webhook-secret

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Documentation

Full docs at pinexai.github.io/repomind

• Installation & Quick Start
• CLI Reference
• MCP Tools Reference
• Architecture Deep Dive
• repomind vs repowise

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License

MIT — see LICENSE.

Built by pinexai.