feat: add documentation, specifications, and pipeline configurations for GEWU agent system

agents/gewu/README.md

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+# GEWU local research-agent pack
+
+Version 0.1.0. Draft instruction pack; service integration and host installation are not implemented or verified.
+
+This pack follows the workspace-agent pattern used by Winnow and Praxis: [agent profile](AGENTS.md), shared protocols, four skills and separate pipeline procedures. An existing local host supplies the model and tools. There is no standalone agent engine here.
+
+The pack is source material for a dedicated research workspace. Keep the complete pack together when installing it into that workspace's canonical `.agents` directory. Configure the chosen host's discovery and MCP connection separately; preserve existing profiles and other servers. No commands here assume an installer or service exists.
+
+| Entry point | Use |
+| --- | --- |
+| [kb-ingest](skills/kb-ingest/SKILL.md) | Turn selected material into evidence-bound proposals. |
+| [kb-query](skills/kb-query/SKILL.md) | Retrieve and explain accepted knowledge with citations. |
+| [kb-curate](skills/kb-curate/SKILL.md) | Audit a scoped collection and propose corrections/relations. |
+| [kb-synthesize](skills/kb-synthesize/SKILL.md) | Build a synthesis with revision-bound dependencies. |
+
+The [manifest](manifest.json) records versions and explicit compatibility status. Pending service compatibility means no connected workflow is claimed. Until tools exist, requested local drafts stay under the selected workspace's `Drafts/` and remain unaccepted; no canonical writes or fabricated receipts are permitted.