Show HN: ctx – Search the coding agent history already on your machine

luca-ctx

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Hacker News

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Coding agents don't have long-term memory.But you do have months of full-fidelity agent transcripts stored on your machine.A simple solution that goes a long way: ingest those transcripts and logs into a structured SQLite database, then search them with ranked text match.

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Everything is fully local and doesn't require anything fancy like a graph database or hosted memory service.This is the idea behind ctx, a Rust CLI that handles the ingestion and searching.We give our agents a skill that tells them to reference past sessions before working in an area.

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Usually we do this through an "Agent History Research Subagent" whose job is just to prepare a short brief covering any relevant history before the task begins.A real example: sometimes our test suite runs would fail because disk was full on the runner.

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The correct approach was to run the cleanup runbook, but the root cause of the failure was not clear to the agents, so they would think it was a test regression and go down the wrong...

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