dsh-plugin-edit-regenerate

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A DSH (DeepSeek Harness) plugin that lets you edit a user message in conversation history: click the "✎ Edit" button under a user bubble, confirm the revision, and the system drops everything after that message and regenerates from the revised prompt.

Behavior

• Non-first message: forks a new child session at the end of the previous turn (sessions.fork + prompt + open); the original session is left untouched.
• First message: creates a fresh blank session in the same workspace and regenerates with the revised text as the opening prompt.
• Messages with attachments are resent as plain text after revision (attachments are not kept; the UI warns about this).
• Session storage is an append-only log and cannot be truncated in place; forking is the platform-native "edit and regenerate".

Architecture

A single DSH plugin package that declares both halves:

• dsh.bundle.patch → cordis.patch.yml, assembled into the profile as a bundle;
• dsh.client → browser half (./client), injected into window.__DSH_BOOT__ by dsh-client-modules;
• main → host half entry lib/index.js.

Host (lib/index.js + lib/typert.host.js)

EditRegenerateService extends TypertRemoteService registers the Cordis service editRegenerate, exposed to the client through the ./typert manifest via @deepseek-ai/dsh-typert-loader:

• resolve(sessionId, seq) — reads the session event log, locates the user message, and computes the preceding turn/end as the fork boundary; for the first message it resolves the owning workspace.

Browser (lib/client.js)

• Mounts TYPERT_REMOTE and installs remote.editRegenerate into the runtime;
• takes over the conversation.chat.node slot's user key renderer at priority: -1 (the stock user renderer is shadowed; other keys such as steering are unaffected), rendering an editable user bubble.

Install (persistent)

The plugin is installed per profile — pick the profile that matches how you run DSH:

Version	Profile	Directory
DSH Desktop app (Electron)	desktop	C:\Users\<user>\.dsh\profiles\desktop
Official launcher / CLI (dsh web)	web	C:\Users\<user>\.dsh\profiles\web

# DSH Desktop app
dsh plugin --profile desktop add file:./dsh-plugin-edit-regenerate
# Official launcher / CLI
dsh plugin --profile web add file:./dsh-plugin-edit-regenerate

Or manually: append dsh-plugin-edit-regenerate to dsh.profile.bundles and add "dsh-plugin-edit-regenerate": "file:<absolute path>" to dependencies in that profile's package.json (e.g. C:\Users\<user>\.dsh\profiles\desktop\package.json), then run pnpm install in the profile directory.

Restart DSH for the changes to take effect. The two profiles are independent — installing into one does not affect the other.

License

MIT