Add Hindsight plugin#57
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Adds Hindsight — automatic long-term memory for Grok Build. Recalls relevant memories before each prompt, retains conversation transcripts, and exposes agent_knowledge_* tools via a bundled stdio MCP server. Source: url pin to vectorize-io/hindsight-grok-plugin at a full commit SHA, same shape as the other third-party entries. Category `memory`. Changes: - .grok-plugin/marketplace.json — Hindsight catalog entry (url source + SHA). - .grok-plugin/plugin-index.json — regenerated; records the hindsight MCP server (stdio), 4 lifecycle hooks, and the create-agent skill. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
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Summary
Adds Hindsight to the marketplace — automatic long-term memory for Grok Build. Hindsight recalls relevant memories before each prompt, retains conversation transcripts, and exposes knowledge-page tools (recall, ingest, create/update/delete pages) through a bundled MCP server. It fills a gap in the catalog: there's no agent-memory plugin yet. Category
memory.cc @ykeremy
How it works
type: local, vendored underexternal_plugins/hindsight/— same shape as the mergedneonentry (#18). The plugin's canonical home is a subdirectory of thevectorize-io/hindsightmonorepo (hindsight-integrations/claude-code/), so a root-cloningurlsource can't target it; vendoring locally is the clean path, matchingneon.hindsight, stdio):.mcp.jsonlaunchesscripts/run_mcp.sh, which creates a per-plugin venv andpip installsmcp>=1.0.0from the vendoredrequirements.txt(nocurl|bash, no remoteeval), then execs the localmcp_server.py.hindsight-embedpackage, run viauvx hindsight-embed@latestand reached over localhost only (http://127.0.0.1:9077). Pinnable viaHINDSIGHT_EMBED_VERSIONinsettings.json.SessionStart,UserPromptSubmit,Stop,SessionEnd) run local Python scripts to recall before prompts and retain transcripts after.create-agent— scaffold a Hindsight-powered subagent with long-term memory.Network & credentials (for security review)
127.0.0.1:9077— no inbound, no external endpoint by default.~/.ssh/.env/tokens for exfiltration; hooks are scoped to lifecycle events; no obfuscated payloads. MIT licensed.Changes
.grok-plugin/marketplace.json— Hindsight catalog entry (local source, homepage, keywords, domains)..grok-plugin/plugin-index.json— regenerated; records thehindsightMCP server (stdio), 4 hooks, and thecreate-agentskill.external_plugins/hindsight/**— vendored plugin (manifest,.mcp.json, hooks, scripts, skill, README, LICENSE).Validation
```
python3 scripts/validate-catalog.py # Catalog OK
python3 scripts/generate-plugin-index.py --check # Plugin index OK
```
Both pass — the same two steps CI runs.
Note
The plugin uses
\${CLAUDE_PLUGIN_ROOT}/\${CLAUDE_PLUGIN_DATA}(Claude-ecosystem convention, which this repo already accepts via.claude-plugin/manifests). Happy to swap to\${GROK_PLUGIN_ROOT}if Grok Build expects that variable instead — just let me know.