Kleio vs Sourcebot
Sourcebot searches code.
Kleio traces decisions.
Sourcebot helps you understand what code does. Kleio helps you understand why it ended up that way — connecting specs, agent sessions, PRs, and incidents into a queryable decision trail.
Where Sourcebot works well
- Self-hosted with a single Docker image — full control, no data leaves your infrastructure.
- AI-powered agentic search across your entire codebase with BYO LLM key.
- Connects to GitHub, GitLab, Bitbucket, Gerrit, and more — scales to thousands of repos.
- MCP server for IDE and agent integration.
- Blazingly fast precise code search — regex, literal, structural.
- Fair Source licensed — inspectable and forkable.
Where Sourcebot breaks down
- Code-only — doesn't capture decisions, rationale, or intent behind changes.
- Spatial, not temporal — answers "what does this code do?" but not "why was it built this way?"
- No decision provenance — can't trace a bug back to the decision or spec that caused it.
- No agent session linking — AI agent reasoning disappears after the session ends.
- No backlog synthesis — search results don't turn into actionable follow-up work.
- No incident-to-decision tracing — can't connect production breaks to the recent changes or stale assumptions that caused them.
- No cross-tool correlation — Slack decisions, Linear issues, and PR discussions stay siloed.
How Kleio is different
- Captures decisions from MCP, CLI, and GitHub App — both human and AI.
- Temporal graph: traces how decisions evolved across commits, PRs, and agent sessions.
- Queryable via kleio_ask — RAG-grounded retrieval over your actual decision history.
- Backlog synthesis — captured context auto-generates prioritized work items.
- Incident tracing — connect breakages to recent work and decision drift.
- Works alongside code search tools like Sourcebot, not instead of them.
See it in action
An agent plans a migration. Kleio captures every signal along the way.
Agent Plan
Task: Migrate auth from Firebase to Clerk
- 1.Scaffold Clerk provider and session hooks
- 2.Replace Firebase login/signup flows
- 3.Update API middleware for Clerk JWT validation
Press Build to run the capture demo.
Your AI agents already make decisions. Kleio makes sure they're remembered. Try it free →
Side-by-side
| Capability | Sourcebot | Kleio |
|---|---|---|
| Code search | ||
| Agentic code Q&A | ||
| MCP server | ||
| Decision capture | ||
| Agent session provenance | ||
| Backlog synthesis | ||
| Cross-tool signal linking | ||
| Incident-to-decision tracing | ||
| Self-hosted | ||
| Natural language query | Yes (decisions) | |
| Open source | Fair Source | Partial (kleio-github) |
Better together or full replacement?
Different dimensions entirely. Sourcebot gives you spatial code understanding — find, read, and comprehend what exists right now. Kleio gives you temporal decision understanding — why the codebase looks the way it does, what changed, and what to do next. Use Sourcebot to navigate code. Use Kleio to navigate decisions. They pair well together.
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