ShardStitch: A Trust-Labeled Continuation Packet for AI Coding Handoffs

Research context and background

ShardStitch is a local-first tool designed to help developers recover their work when AI coding sessions fail, hit limits, or become stale. Instead of relying on raw chat transcripts or potentially inaccurate AI summaries, ShardStitch reconstructs the actual state of a project from disk evidence like Git diffs and changed files. It creates a trust-labeled continuation packet that separates verified facts from inferred claims, ensuring the next AI agent or human developer knows exactly what is ground truth and what needs re-verification.

Benefits

ShardStitch offers several key advantages for developers working with AI tools:

• Recovery After Failure: Unlike tools that focus on preventing context loss, ShardStitch specializes in recovering work after a session dies, gets locked out, or is deleted. It rebuilds the working state from surviving disk evidence.
• Verified vs. Inferred Split: The tool clearly labels information as either verified disk facts or inferred claims from previous AI sessions. This prevents the next tool from blindly trusting incorrect assumptions.
• Cross-Tool Compatibility: Developers can switch between different AI coding tools mid-task without starting over. The working state moves intact whether switching from Claude to Cursor or from a web chat to a CLI tool.
• Local Privacy: The tool runs locally on the user's machine with zero telemetry. No code, conversations, or project data are sent to the cloud during normal recovery.
• Risk Awareness: It identifies dangerous files and dependency risks, warning the next AI about areas that could cause problems if touched.
• Extensive Integrations: ShardStitch supports 42 MCP tools and works with 20+ native formats, including integrations with tools like Devin, Aider, Cline, and various web-based AI platforms.

Use Cases

ShardStitch is useful in several common development scenarios:

• Interrupted Tasks: When a coding session hits an error or usage limit, ShardStitch rebuilds the next packet from what survived on disk so work can continue.
• Tool Switching: Developers can move from a rate-limited tool to a different AI without losing their progress or context.
• Cleaning Stale Context: The tool helps clean up bloated chat histories by extracting the useful working state into a fresh continuation prompt.
• Correcting Untrusted Summaries: When a previous AI summary missed important repository state changes or drifted from reality, ShardStitch reconstructs the truth from Git and file changes.
• Session Recovery: The Session Vault keeps surviving conversation context available after crashes, app closes, or tool outages.

Pricing

ShardStitch offers a straightforward pricing model:-Launch Price: $19 for a lifetime license.-Regular Price: $49 for a lifetime license.-Platforms: Windows and Linux desktop apps are available now, with Mac support coming soon.-Features: The tool includes a local dashboard, Alt+G capture, command-line interface, and VS Code/Cursor extensions.

Vibes

While specific customer reviews are not widely publicized yet, the product has generated interest in the developer community for its unique approach to AI coding recovery. The focus on "after-death recovery" rather than just live context management addresses a real pain point for developers who frequently encounter session limits or tool failures. The emphasis on local-first execution and zero telemetry appeals to privacy-conscious developers who want full control over their code and data.

Additional Information

ShardStitch is built to complement rather than replace native AI memory improvements. It sits outside product walls to keep project state portable and give the next tool the verified slice it needs. The licensing is handled by Polar with activation and quiet periodic re-checks. Network usage for cloud LLMs or chat-share imports is explicit and user-controlled. The tool was designed to solve the gap left by existing solutions that focus on prevention but cannot recover unfinished working states when sessions fail.