[FEATURE]: Plugin showcase: opencode-mempalace-persistence — auto-save conversations to MemPalace (v2.1.0)

[geco]

Feature hasn't been suggested before.

• I have verified this feature I'm about to request hasn't been suggested before. (Follow-up to [FEATURE]: Plugin showcase: opencode-mempalace-persistence — auto-save conversations to MemPalace #27752, closed by 60-day stale bot; ecosystem PRs docs(ecosystem): add opencode-mempalace-persistence to plugins table #30540/docs(ecosystem): add opencode-mempalace-persistence to plugins table #30595 died in automated cleanup; fresh PR docs(ecosystem): add opencode-mempalace-persistence to plugins table #49558 just opened.)

Describe the enhancement you want to request

Plugin showcase: opencode-mempalace-persistence (v2.1.0) — automatically saves every OpenCode conversation to MemPalace (local vector DB, zero cloud) and injects relevant memories back into prompts.

• Auto-inject memory — experimental.chat.messages.transform injects identity + relevant memories into every prompt. Zero model discipline required.
• AI checkpoints — every 15 messages the model files topics/decisions/quotes via MCP tools; pre-compaction emergency save + synchronous exit save, so a failed compaction never loses memory.
• Delta-only sync — only new messages since last sync, exports grouped one wing per project.
• Knowledge Graph + diary — structured facts and session journals via MCP tools.
• Mining — mempalace mine --mode convos --extract general. Async, never blocks the UI.
• Pure TypeScript, MIT, fully open source. In daily use (5.5k+ drawers mined).

Setup:

1. Add opencode-mempalace-persistence to plugin in opencode.json
2. Add the mempalace MCP server (mempalace-mcp)
3. Minimal AGENTS.md + ~/.mempalace/identity.txt (bundled recall skill included)

Repo: https://github.com/geco/opencode-mempalace-persistence
npm: opencode-mempalace-persistence

[github-actions]

This issue might be a duplicate of existing issues. Please check:

• [FEATURE]: List opencode-mlflow-plugin in the ecosystem #49507: Similar ecosystem plugin listing request (opencode-mlflow-plugin)
• [FEATURE]: Add lintlang to the ecosystem plugins list #49156: Similar ecosystem plugin listing request (lintlang)

These issues follow the same pattern of requesting a third-party plugin be listed on the ecosystem page. You may want to coordinate with the maintainers on the preferred process for ecosystem plugin submissions.

[geco]

Not a duplicate — #49507 and #49156 are listing requests for different plugins (same pattern, parallel efforts, both still open with no maintainer process defined yet).

To keep things actionable: the ecosystem-table addition requested here is already covered by PR #49558 (fresh, conventional title, full template body, v2.1.0). This issue remains as the plugin showcase / tracking thread, following up on #27752 (closed by the 60-day stale bot).