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Sourcegraph

The context layer for your entire codebase

Sourcegraph provides code search and code-graph context for developers and AI coding agents, including an MCP server for 'code graph knowledge for agents' and Deep Search with citation-backed answers. Agentic Batch Changes is described as an agent for code changes at scale. The company cites its own CodeScaleBench report for improvements in agent speed and token use.

People

Official YouTube channel

MCP & tools · Multi-agent orchestration · Context engineering & memory

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Devin, the AI software engineer, and the Windsurf IDE.

Cognition builds Devin, an autonomous AI software engineer that plans and executes engineering tasks end-to-end, and acquired the Windsurf agentic IDE in 2025. One of the defining startups of the coding-agent wave.

~$10.2B valuation (Sep 2025)

3 pros · 4 cons

Stateful agents with memory, from the team behind MemGPT.

Letta (formerly MemGPT, out of UC Berkeley) builds an agent server with built-in memory, context management and state — letting agents persist, learn and be edited like files rather than living in a chat window.

$10M seed led by Felicis (2024)

4 pros · 3 cons

The integration layer: hundreds of managed tools your agents can call.

Composio handles auth, schemas, observability and reliability for the external SaaS tools an agent uses — 'plumbing for agentic actions' across Slack, GitHub, Salesforce and 250+ other surfaces.

4 pros · 4 cons

Connections

Relations from the Harness Hub knowledge graph, as charted in the State of Harness reports.

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Sources

  1. Sourcegraph website