cie

CIE (Code Intelligence Engine) is a local CLI that indexes a codebase and exposes semantic code search, call-graph/path analysis, and code/HTTP endpoint discovery to AI agents via the Model Context Protocol (MCP). It stores an embedded CozoDB/RocksDB index locally and can optionally use local or hosted embedding/LLM providers for semantic search and narrative analysis.

Evaluated Mar 30, 2026 (21d ago)
Homepage ↗ Repo ↗ DevTools mcp code-intelligence semantic-search call-graph tree-sitter local-indexing devtools go
⚙ Agent Friendliness
60
/ 100
Can an agent use this?
🔒 Security
35
/ 100
Is it safe for agents?
⚡ Reliability
22
/ 100
Does it work consistently?

Score Breakdown

⚙ Agent Friendliness

MCP Quality
80
Documentation
75
Error Messages
0
Auth Simplicity
90
Rate Limits
0

🔒 Security

TLS Enforcement
20
Auth Strength
30
Scope Granularity
20
Dep. Hygiene
50
Secret Handling
60

Security posture is positioned as local-only data storage (code never leaves the machine) and embedded DB use. However, the provided content does not document MCP transport security/auth controls, threat model, or rate limiting. Secrets for embedding/LLM providers are configured via YAML/env vars; guidance on preventing logging/accidental exposure is not provided in the README. TLS cannot be meaningfully assessed for the MCP server because no network/auth details are described.

⚡ Reliability

Uptime/SLA
0
Version Stability
40
Breaking Changes
20
Error Recovery
30
AF Security Reliability

Best When

You want an offline/local code-knowledge layer for an AI coding agent, especially when you need call graphs and structured code search across a large repository.

Avoid When

You need strict RBAC/authN/authZ guarantees for multi-tenant remote access, or you require guaranteed semantic results without any embedding model/providers.

Use Cases

  • Semantic search for functions/types by intent (e.g., “where is auth middleware” )
  • Tracing call graphs and execution paths to understand how a function is reached
  • Discovering HTTP/REST endpoints (Go framework conventions) and gRPC services (from .proto)
  • Providing agents with structured code intelligence to reduce tool round-trips
  • Auditing/verification tasks via pattern absence checks (cie_verify_absence)

Not For

  • A hosted SaaS for running on remote code (it is positioned as local-only)
  • High-availability production APIs for end-user traffic (it’s primarily a local indexing/querying tool)
  • Security/compliance systems that require formally documented threat models and guarantees beyond local storage claims

Interface

REST API
No
GraphQL
No
gRPC
No
MCP Server
Yes
SDK
No
Webhooks
No

Authentication

Methods: Local/offline mode (no auth described for the MCP server) Embedding provider authentication via environment variables (e.g., OpenAI API key)
OAuth: No Scopes: No

No auth mechanism for the MCP server is described in the provided README; access is implied to be local-process based. For embedding/LLM features, credentials are configured via env vars in YAML (e.g., OpenAI API key / Ollama base_url).

Pricing

Free tier: No
Requires CC: No

Open source (AGPL v3) is available via releases/binaries. Enterprise is offered commercially, but no pricing details are included in the provided content.

Agent Metadata

Pagination
none
Idempotent
False
Retry Guidance
Not documented

Known Gotchas

  • Semantic search may require embeddings; without configuring an embedding provider (e.g., Ollama/OpenAI/Nomic) the semantic tool’s results may be unavailable or degraded while structural tools still work.
  • Because the index is local, agents need to ensure the correct project_id and that indexing has been run before querying.
  • No documented auth/rate-limit/error-contract details for the MCP server in the provided README; agents should be prepared for tool failures without standardized guidance.

Alternatives

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Scores are editorial opinions as of 2026-03-30.

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Packages Evaluated
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