AI coding chats often contain proprietary code, internal URLs, credentials-adjacent snippets, debugging notes, architecture decisions, and emotional context from a late-night fix. That makes chat history useful, but also a poor default place to store project memory.

Radar read: chat history is evidence. It should be filtered into a local recovery packet, not treated as the permanent source of truth.

Why this matters.

Microsoft reported malicious AI assistant browser extensions that harvested LLM chat histories and browsing data. Separately, prompt-injection guidance from OpenAI describes how external content can manipulate agent behavior when it enters the conversation context. Both problems point to the same recovery rule: minimize what you carry forward and label where it came from.

What to preserve instead.

  1. Keep the diff. Changed files are more important than the full chat transcript.
  2. Keep verification state. Tests run, commands failed, and logs produced are durable evidence.
  3. Keep decisions. Summarize why a path was chosen without copying unnecessary sensitive text.
  4. Keep failed attempts. Record what not to repeat.
  5. Drop irrelevant conversation. Do not carry every prompt and response into the next tool.

What ShardStitch does here.

ShardStitch is local-first and zero telemetry. Its job is to turn messy chat-adjacent work into a smaller, labeled recovery packet: verified disk facts, inferred claims, failed attempts, decisions, and next action. That helps you restart or switch tools without preserving a sensitive transcript as project memory.

Source trail

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