* feat: introduce hindsight-api-slim and hindsight-all-slim packages
Closes#552
- Move all source code from hindsight-api/ to new hindsight-api-slim/
- hindsight-api-slim has heavy ML deps (torch, sentence-transformers,
transformers, einops, flashrank, mlx, mlx-lm, safetensors) and
pg0-embedded as optional extras: [local-ml], [embedded-db], [all]
- hindsight-api becomes a zero-code meta-package depending on
hindsight-api-slim[all] for full backward compatibility
- Add hindsight-all-slim meta-package: hindsight-api-slim + client + embed
- hindsight-all updated to depend on hindsight-api-slim[all]
- pg0.py: lazy-import pg0 with clear ImportError pointing to [embedded-db]
- Dockerfile: replace sed hack with proper uv sync --extra flags
- Update release.yml, test.yml, lint.sh, release.sh, CLAUDE.md and
all path references throughout the repo
* refactor: rename hindsight/ directory to hindsight-all/
* docs: document hindsight-api-slim and hindsight-all-slim package variants
Add package variants table and extras explanation to installation.md
* docs: remove emojis from installation.md, use professional tone
* docs: link Docker slim variant to pip package variants section
* docs: consolidate Docker image variants into single table
* ci: fix working-directory paths after package restructure
- Replace all hindsight-api → hindsight-api-slim in test.yml
- Replace hindsight → hindsight-all in test.yml
- Add --extra embedded-db to test-embed API install step
* ci: add local-ml and embedded-db extras to API sync steps
These extras were previously implicit in the old hindsight-api package
(which bundled everything). Now that hindsight-api-slim uses optional
extras, we must explicitly request local-ml and embedded-db in CI.
* ci: add API install step with embedded-db to test-embed smoke test
The smoke test starts hindsight-api as a daemon, which requires pg0-embedded.
Add a dedicated install step for hindsight-api-slim with embedded-db extra
so the daemon can start successfully.
* ci: remove --no-install-project when using optional extras
When --no-install-project is combined with --extra, the optional deps
are not installed because extras require the project to be active.
Remove --no-install-project from steps that need local-ml or embedded-db.
* ci: fix ordering of uv sync steps to preserve optional extras
When uv sync runs for a different workspace member, it removes optional
extras installed for other members. Fix by always running extra-requiring
API sync last, after other workspace member syncs.
Also remove --no-install-project from embedded-db sync in test-embed,
as --no-install-project prevents optional extras from being active.
* ci: add local-ml extra to test-embed API install for smoke test
The smoke test starts the full API server which needs sentence-transformers
for local embeddings (default provider). Add local-ml extra to the install.
* ci: simplify extras with --all-extras and add slim pip smoke test
- Replace explicit --extra local-ml --extra embedded-db with --all-extras
for cleaner, more maintainable sync steps
- Add test-pip-slim job: tests hindsight-api-slim[embedded-db] without
local ML models, using Cohere for embeddings/reranking (mirrors Docker
slim smoke test approach)
* ci: simplify slim smoke test to health check only (mirrors Docker test)
FastMCP 3.x replaced _tool_manager.get_tools() with a provider pattern
(LocalProvider._list_tools via _components). The existing wrapper on
_tool_manager.get_tools() silently failed (caught AttributeError) since
_tool_manager no longer exists in v3.
Now wraps FastMCP.list_tools() and FastMCP.get_tool() for v3, while
preserving the _tool_manager approach for v2 compatibility.
* feat: add bank-scoped validation to engine methods and HTTP handlers
Add validate_bank_read/validate_bank_write hooks to all bank-scoped
engine methods so the operation validator can enforce per-bank API key
restrictions. Add OperationValidationError handling to HTTP handlers
and MCP tools to return proper 403 responses. Add allowed_bank_ids
field to RequestContext.
* Add OperationValidationError handling to mental model GET and DELETE endpoints
Add directives, memory browsing, documents, operations, tags, and bank
management tools to the MCP server. Expose previously hardcoded parameters
(budget, types, tags, response_schema, trigger) on retain, recall, reflect,
and mental model tools. Update docs for all new tools and parameters.
Co-authored-by: Claude Opus 4.6 <noreply@anthropic.com>
* fix: move mental model usage metering into engine for MCP support
Mental model validation hooks (validate_mental_model_get, validate_mental_model_refresh)
were only called in REST HTTP handlers, not in the engine. MCP tools call engine methods
directly, so usage metering was skipped entirely for MCP mental model operations.
Moved pre-validation and post-completion hooks into memory_engine.py (matching the
retain/recall/reflect pattern) and removed the duplicate code from http.py.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
* fix: remove double validation from create_mental_model and add internal checks
- Remove pre-validation from create_mental_model since callers always call
submit_async_refresh_mental_model next (which validates), preventing
double credit checks
- Add is_internal checks to mental model metering validators (matching
the existing pattern for recall/reflect) so background worker tasks
skip billing
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
* fix: prevent 307 redirect on /mcp that breaks MCP tool discovery
Starlette's Mount class redirects /mcp to /mcp/ with a 307 Temporary
Redirect. Many MCP clients don't follow POST redirects, which causes
tool discovery to fail (0 tools discovered despite successful auth).
Add _MCPPathRewriteMiddleware that rewrites /mcp to /mcp/ at the ASGI
level before routing, preventing the redirect entirely. Both /mcp and
/mcp/ now work identically.
Add regression test test_mcp_no_trailing_slash_works to verify URLs
with and without trailing slashes discover tools correctly.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
* harden MCP server for real-world usage
- Remove MCP_ENDPOINTS blocklist so banks named "sse"/"messages" route correctly
- Scope SSE body rewriting to text/event-stream responses only to prevent data corruption
- Add _validate_mental_model_inputs for name, source_query, max_tokens validation in MCP tools
- Improve "not found" error messages to include bank_id context
- Fix fragile tool count assertions (exact → minimum bounds)
- Add integration tests: tool execution, input validation, edge-case bank names
- Add unit tests for validation helper and tool-level validation
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
* refactor: replace Mount + rewrite middleware with wrapping middleware
Starlette's Mount class redirects /mcp -> /mcp/ with 307, which MCP clients
don't follow. Previously we patched this with _MCPPathRewriteMiddleware.
Now MCPMiddleware wraps the FastAPI app directly via add_middleware, intercepting
/mcp* requests before they reach Starlette's router. No Mount means no redirect.
- Remove _MCPPathRewriteMiddleware (no longer needed)
- Remove app.mount() call
- Add prefix parameter to MCPMiddleware
- Use app.add_middleware() for proper Starlette integration
- Simplify path stripping (just remove prefix, no mount/root_path handling)
- Update routing test to match current behavior (no MCP_ENDPOINTS blocklist)
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
* fix: update stale docstring referencing removed _MCPPathRewriteMiddleware
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
---------
Co-authored-by: Claude Opus 4.6 <noreply@anthropic.com>
* Add mental model CRUD tools to MCP server
Expose mental models (pinned reflections) as 6 new MCP tools:
- list_mental_models: List with optional tag filtering
- get_mental_model: Get by ID
- create_mental_model: Create with async content generation
- update_mental_model: Update name/source_query/tags
- delete_mental_model: Delete by ID
- refresh_mental_model: Re-run source query to update content
Both multi-bank (bank_id param) and single-bank modes supported,
following the same patterns as existing retain/recall/reflect tools.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
* fix: include mental model tools in single-bank MCP mode and update tests
The single-bank mode tool set was hardcoded to only retain/recall/reflect,
excluding the new mental model tools. Updated all 3 test layers (unit,
routing, HTTP integration) to assert mental model tool exposure.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
* fix: update extension test tool count for mental model tools
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
* fix: move mental model usage metering into engine for MCP support
Mental model validation hooks (validate_mental_model_get, validate_mental_model_refresh)
were only called in REST HTTP handlers, not in the engine. MCP tools call engine methods
directly, so usage metering was skipped entirely for MCP mental model operations.
Moved pre-validation and post-completion hooks into memory_engine.py (matching the
retain/recall/reflect pattern) and removed the duplicate code from http.py.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
* fix: remove double validation from create_mental_model and add internal checks
- Remove pre-validation from create_mental_model since callers always call
submit_async_refresh_mental_model next (which validates), preventing
double credit checks
- Add is_internal checks to mental model metering validators (matching
the existing pattern for recall/reflect) so background worker tasks
skip billing
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
---------
Co-authored-by: Claude Opus 4.6 <noreply@anthropic.com>
MCP middleware was discarding tenant_id and api_key_id after authentication.
The authenticate_mcp() call mutated a RequestContext with these fields, but
tools later created a fresh RequestContext without them. This caused
UsageMeteringValidator to see tenant_id="unknown" and skip billing entirely.
Propagate tenant_id and api_key_id via ContextVars (same pattern as bank_id
and api_key) so the RequestContext passed to the memory engine has the full
auth context needed for usage tracking.
Co-authored-by: Claude Opus 4.6 <noreply@anthropic.com>
* feat(mcp): add Bearer token authentication support
Add HINDSIGHT_API_MCP_AUTH_TOKEN environment variable to enable
authentication for MCP endpoint. When set, all requests must include
a valid Authorization header (Bearer token or direct token).
If not set, MCP endpoint remains open for backwards compatibility
with local development environments.
* fix: propagate Bearer token from MCP middleware to tools for tenant auth
MCP tools were creating RequestContext() without api_key, causing
"Invalid API key" errors when tenant extension validates requests.
Now the Bearer token is extracted in middleware, stored in a context
variable, and passed through to all MCP tool RequestContext instances.
