Know why it exists - and what breaks next.

Deep Semantic Search

Understand intent across languages with hybrid structural and semantic retrieval. Pluggable embedding providers include Azure OpenAI, Gemini, Voyage, and Ollama.

Codebase Knowledge Graph

Connect tickets, commits, PR reviews, code reviews, compiled artifacts, deployments, call graphs, import graphs, and type hierarchies into a single, queryable knowledge graph with temporal scoring.

Cross-Repository Context

Materialised contract maps surface producers and consumers across HTTP APIs, queues, and internal NuGet/npm packages. One question, every caller. No per-repo blind spots.

Call Graph & Impact Analysis

Static call-site extraction with multi-pass name resolution across 14 languages. Trace forward execution from any HTTP route or entry point. Reverse BFS finds all upstream callers with log-scaled risk scoring. Know the blast radius before you touch a line.

Native MCP Integration

35+ MCP tools plus a first-party CLI and transparent, secure API proxy for AI assistants. Search, trace, impact, contract, history, and administration tools share one permission-aware context layer.

Architectural Community Detection

Louvain clustering over call graph edges discovers architectural modules, tracks their split/merge lineage, identifies entry points, and generates architecture documentation without LLM cost.

Decision history

Trace a subsystem through work items, commits, reviews, and retained historical evidence to understand how it reached its current shape.

Source-authored rationale

Index ADR and RFC citations, comments, and authored rationale as evidence attached to the symbols and files they describe.

Time-aware context

Ask what was known at a point in time, identify stale knowledge during rewrites, and distinguish current architecture from historical residue.

Engineering health

Executive and technical snapshots surface fragility, test reachability, regression history, semantic anomalies, and architecture drift.

Ownership & key-person risk

Map recent domain knowledge, ownership concentration, and places where the code's practical ownership no longer matches the organisation chart.

Cross-repo duplication

Convergent-Evolution Radar identifies semantically similar implementations that evolved independently across repositories.

Rewrite Radar

Flag actively rewritten subsystems where cached documentation and historical assumptions are becoming stale.

Regression provenance

Add defect-density and change-history evidence to impact analysis so risky areas receive proportionate review.

Human-gated action

Turn validated evidence into deterministic technical-debt candidates while keeping filing and prioritisation under human control.

MCP, CLI & Explore

Use 35+ MCP tools from AI coding clients, the first-party engram CLI in a terminal, or Explore for interactive search and graph navigation.

Pull-request context

Annotate GitHub pull requests with impact, dependency, and historical context so reviewers see risk at the decision point.

Reports & team access

Export self-contained interactive HTML graphs and optionally expose ask-the-codebase workflows through Teams or Slack.

Module Briefings & Scope Packs

Per-community architecture overviews with entry points, and per-directory API surface bundles with import graphs. Compiled at index time.

Symbol Contexts & Contract Maps

Per-symbol bundles with callers, callees, tickets, review context, commits, and release signals. Plus materialized cross-repo contract topology. Zero LLM cost at query time.

Multi-pod safe

Workers heartbeat into the queue. If a pod disappears mid-job, another picks the work up from where it stopped. No silent stalls, no duplicate runs.

Deploy-resilient

Jobs interrupted by a rolling deploy are auto-restarted at the front of the queue. Canary deploys ship with telemetry baselines, dev environments serialise to keep things sane.

Priority-aware queue

Priority-weighted dequeue and dynamic per-job timeouts. A 30-minute mono-repo full reindex won't starve the canary checking a five-file change.

Three modes, pick per repo or per run:

• FullRe-parse, re-embed, re-compile artifacts from scratch.
• IncrementalOnly touched files since the last indexed commit.
• RecompileKeep the index, rebuild the artifacts. Fast.

Add your Engram MCP configuration to an AI tool.

{
  "mcpServers": {
    "engram": {
      "url": "https://..."
    }
  }
}

Permission-aware retrieval

Repository-level authorization applies across MCP, search, and Explore so users and AI tools retrieve only repositories they are entitled to access.

Self-hosted releases

Deploy versioned releases through an official OCI Helm chart or generic Docker Compose package, with build information and offline license verification.

Operate and recover

Monitor drift, failures, readiness, rate limits, and queue health. Supported backup, export, and restore workflows provide a practical disaster-recovery path.