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+# Phase 10: Agent Capabilities - Context
+
+**Gathered:** 2026-03-26
+**Status:** Ready for planning
+
+<domain>
+## Phase Boundary
+
+Connect the 4 built-in agent tools to real external services. The biggest deliverable is the knowledge base document pipeline (upload → chunk → embed → search). Web search and HTTP request tools already have working implementations that need API keys configured. Calendar tool needs Google Calendar OAuth integration with full CRUD (not just read-only).
+
+</domain>
+
+<decisions>
+## Implementation Decisions
+
+### Knowledge Base & Document Upload
+- **Supported formats:**
+  - Files: PDF, DOCX/Word, TXT, Markdown, CSV/Excel, PPT/PowerPoint
+  - URLs: Web page scraping/crawling via Firecrawl
+  - YouTube: Transcriptions (use existing transcripts when available, OpenWhisper for transcription when not)
+- KB is **per-tenant** — all agents in a tenant share the same knowledge base
+- Dedicated **KB management page** in the portal (not inline in Agent Designer)
+  - Upload files (drag-and-drop + file picker)
+  - Add URLs for scraping
+  - Add YouTube URLs for transcription
+  - View ingested documents with status (processing, ready, error)
+  - Delete documents (removes chunks from pgvector)
+  - Re-index option
+- Document processing is **async/background** — upload returns immediately, Celery task handles chunking + embedding
+- Processing status visible in portal (progress indicator per document)
+
+### Web Search
+- Brave Search API (already implemented in `web_search.py`)
+- Configuration: Claude's discretion (platform-wide key recommended for simplicity, BYO optional)
+- `BRAVE_API_KEY` added to `.env`
+
+### HTTP Request Tool
+- Already implemented in `http_request.py` with timeout and size limits
+- Operator configures allowed URLs in Agent Designer tool_assignments
+- No changes needed — tool is functional
+
+### Calendar Integration
+- Google Calendar OAuth per tenant — tenant admin authorizes in portal
+- Full CRUD for v1: check availability, list upcoming events, **create events** (not read-only)
+- OAuth callback handled in portal (similar pattern to Slack OAuth)
+- Calendar credentials stored encrypted per tenant (reuse Fernet encryption from Phase 3)
+
+### Claude's Discretion
+- Web search: platform-wide vs per-tenant API key (recommend platform-wide)
+- Chunking strategy (chunk size, overlap)
+- Embedding model for KB (reuse all-MiniLM-L6-v2 or upgrade)
+- Firecrawl integration approach (self-hosted vs cloud API)
+- YouTube transcription: when to use existing captions vs OpenWhisper
+- Document size limits
+- KB chunk deduplication strategy
+
+</decisions>
+
+<specifics>
+## Specific Ideas
+
+- The KB page should show document processing status live — operators need to know when their docs are ready for agents to search
+- YouTube transcription is a killer feature for SMBs — they can feed training videos, product demos, and meeting recordings into the agent's knowledge base
+- URL scraping via Firecrawl means agents can learn from the company's website, help docs, and blog posts automatically
+- Calendar event creation makes the Sales Assistant and Office Manager templates immediately valuable — they can actually book meetings
+
+</specifics>
+
+<code_context>
+## Existing Code Insights
+
+### Reusable Assets
+- `packages/orchestrator/orchestrator/tools/builtins/web_search.py` — Brave Search API integration (working, needs key)
+- `packages/orchestrator/orchestrator/tools/builtins/kb_search.py` — pgvector similarity search (needs chunk data)
+- `packages/orchestrator/orchestrator/tools/builtins/http_request.py` — HTTP client with limits (working)
+- `packages/orchestrator/orchestrator/tools/builtins/calendar_lookup.py` — Placeholder stub (needs Google Calendar)
+- `packages/orchestrator/orchestrator/memory/embedder.py` — SentenceTransformer singleton (reuse for KB embedding)
+- `packages/shared/shared/models/kb.py` — KbDocument and KbChunk ORM models (created in Phase 2 migration)
+- `packages/shared/shared/crypto.py` — Fernet encryption (reuse for Google Calendar tokens)
+- `packages/shared/shared/api/channels.py` — OAuth pattern (reuse for Google Calendar OAuth)
+
+### Established Patterns
+- Celery tasks for background processing (fire-and-forget with `embed_and_store.delay()`)
+- pgvector HNSW cosine similarity with tenant_id pre-filter
+- MinIO/S3 for file storage (configured but not used for KB yet)
+- Fernet encrypted credential storage per tenant
+
+### Integration Points
+- Portal needs new `/knowledge-base` page (similar to `/settings/api-keys`)
+- Gateway needs document upload endpoint (multipart file upload)
+- Gateway needs Google Calendar OAuth callback route
+- Agent Designer needs Google Calendar connection status display
+- Nav needs KB link added for customer_admin + platform_admin
+
+</code_context>
+
+<deferred>
+## Deferred Ideas
+
+None — discussion stayed within phase scope
+
+</deferred>
+
+---
+
+*Phase: 10-agent-capabilities*
+*Context gathered: 2026-03-26*