Commit Graph

1773 Commits

Author SHA1 Message Date
Sarah Wooders
3fdf2b6c79 chore: deprecate old agent messaging (#9120) 2026-02-24 10:52:06 -08:00
Sarah Wooders
4096b30cd7 feat: log LLM traces to clickhouse (#9111)
* feat: add non-streaming option for conversation messages

- Add ConversationMessageRequest with stream=True default (backwards compatible)
- stream=true (default): SSE streaming via StreamingService
- stream=false: JSON response via AgentLoop.load().step()

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* chore: regenerate API schema for ConversationMessageRequest

* feat: add direct ClickHouse storage for raw LLM traces

    Adds ability to store raw LLM request/response payloads directly in ClickHouse,
    bypassing OTEL span attribute size limits. This enables debugging and analytics
    on large LLM payloads (>10MB system prompts, large tool schemas, etc.).

    New files:
    - letta/schemas/llm_raw_trace.py: Pydantic schema with ClickHouse row helper
    - letta/services/llm_raw_trace_writer.py: Async batching writer (fire-and-forget)
    - letta/services/llm_raw_trace_reader.py: Reader with query methods
    - scripts/sql/clickhouse/llm_raw_traces.ddl: Production table DDL
    - scripts/sql/clickhouse/llm_raw_traces_local.ddl: Local dev DDL
    - apps/core/clickhouse-init.sql: Local dev initialization

    Modified:
    - letta/settings.py: Added 4 settings (store_llm_raw_traces, ttl, batch_size, flush_interval)
    - letta/llm_api/llm_client_base.py: Integration into request_async_with_telemetry
    - compose.yaml: Added ClickHouse service for local dev
    - justfile: Added clickhouse, clickhouse-cli, clickhouse-traces commands

    Feature disabled by default (LETTA_STORE_LLM_RAW_TRACES=false).
    Uses ZSTD(3) compression for 10-30x reduction on JSON payloads.

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* fix: address code review feedback for LLM raw traces

Fixes based on code review feedback:

1. Fix ClickHouse endpoint parsing - default to secure=False for raw host:port
   inputs (was defaulting to HTTPS which breaks local dev)

2. Make raw trace writes truly fire-and-forget - use asyncio.create_task()
   instead of awaiting, so JSON serialization doesn't block request path

3. Add bounded queue (maxsize=10000) - prevents unbounded memory growth
   under load. Drops traces with warning if queue is full.

4. Fix deprecated asyncio usage - get_running_loop() instead of get_event_loop()

5. Add org_id fallback - use _telemetry_org_id if actor doesn't have it

6. Remove unused imports - json import in reader

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* fix: add missing asyncio import and simplify JSON serialization

- Add missing 'import asyncio' that was causing 'name asyncio is not defined' error
- Remove unnecessary clean_double_escapes() function - the JSON is stored correctly,
  the clickhouse-client CLI was just adding extra escaping when displaying
- Update just clickhouse-trace to use Python client for correct JSON output

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* test: add clickhouse raw trace integration test

* test: simplify clickhouse trace assertions

* refactor: centralize usage parsing and stream error traces

Use per-client usage helpers for raw trace extraction and ensure streaming errors log requests with error metadata.

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* test: exercise provider usage parsing live

Make live OpenAI/Anthropic/Gemini requests with credential gating and validate Anthropic cache usage mapping when present.

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* test: fix usage parsing tests to pass

- Use GoogleAIClient with GEMINI_API_KEY instead of GoogleVertexClient
- Update model to gemini-2.0-flash (1.5-flash deprecated in v1beta)
- Add tools=[] for Gemini/Anthropic build_request_data

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* refactor: extract_usage_statistics returns LettaUsageStatistics

Standardize on LettaUsageStatistics as the canonical usage format returned by client helpers. Inline UsageStatistics construction for ChatCompletionResponse where needed.

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* feat: add is_byok and llm_config_json columns to ClickHouse traces

Extend llm_raw_traces table with:
- is_byok (UInt8): Track BYOK vs base provider usage for billing analytics
- llm_config_json (String, ZSTD): Store full LLM config for debugging and analysis

This enables queries like:
- BYOK usage breakdown by provider/model
- Config parameter analysis (temperature, max_tokens, etc.)
- Debugging specific request configurations

* feat: add tests for error traces, llm_config_json, and cache tokens

- Update llm_raw_trace_reader.py to query new columns (is_byok,
  cached_input_tokens, cache_write_tokens, reasoning_tokens, llm_config_json)
- Add test_error_trace_stored_in_clickhouse to verify error fields
- Add test_cache_tokens_stored_for_anthropic to verify cache token storage
- Update existing tests to verify llm_config_json is stored correctly
- Make llm_config required in log_provider_trace_async()
- Simplify provider extraction to use provider_name directly

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* ci: add ClickHouse integration tests to CI pipeline

- Add use-clickhouse option to reusable-test-workflow.yml
- Add ClickHouse service container with otel database
- Add schema initialization step using clickhouse-init.sql
- Add ClickHouse env vars (CLICKHOUSE_ENDPOINT, etc.)
- Add separate clickhouse-integration-tests job running
  integration_test_clickhouse_llm_raw_traces.py

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* refactor: simplify provider and org_id extraction in raw trace writer

- Use model_endpoint_type.value for provider (not provider_name)
- Simplify org_id to just self.actor.organization_id (actor is always pydantic)

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* refactor: simplify LLMRawTraceWriter with _enabled flag

- Check ClickHouse env vars once at init, set _enabled flag
- Early return in write_async/flush_async if not enabled
- Remove ValueError raises (never used)
- Simplify _get_client (no validation needed since already checked)

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* fix: add LLMRawTraceWriter shutdown to FastAPI lifespan

Properly flush pending traces on graceful shutdown via lifespan
instead of relying only on atexit handler.

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* feat: add agent_tags column to ClickHouse traces

Store agent tags as Array(String) for filtering/analytics by tag.

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* cleanup

* fix(ci): fix ClickHouse schema initialization in CI

- Create database separately before loading SQL file
- Remove CREATE DATABASE from SQL file (handled in CI step)
- Add verification step to confirm table was created
- Use -sf flag for curl to fail on HTTP errors

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* refactor: simplify LLM trace writer with ClickHouse async_insert

- Use ClickHouse async_insert for server-side batching instead of manual queue/flush loop
- Sync cloud DDL schema with clickhouse-init.sql (add missing columns)
- Remove redundant llm_raw_traces_local.ddl
- Remove unused batch_size/flush_interval settings
- Update tests for simplified writer

Key changes:
- async_insert=1, wait_for_async_insert=1 for reliable server-side batching
- Simple per-trace retry with exponential backoff (max 3 retries)
- ~150 lines removed from writer

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* refactor: consolidate ClickHouse direct writes into TelemetryManager backend

- Add clickhouse_direct backend to provider_trace_backends
- Remove duplicate ClickHouse write logic from llm_client_base.py
- Configure via LETTA_TELEMETRY_PROVIDER_TRACE_BACKEND=postgres,clickhouse_direct

The clickhouse_direct backend:
- Converts ProviderTrace to LLMRawTrace
- Extracts usage stats from response JSON
- Writes via LLMRawTraceWriter with async_insert

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* refactor: address PR review comments and fix llm_config bug

Review comment fixes:
- Rename clickhouse_direct -> clickhouse_analytics (clearer purpose)
- Remove ClickHouse from OSS compose.yaml, create separate compose.clickhouse.yaml
- Delete redundant scripts/test_llm_raw_traces.py (use pytest tests)
- Remove unused llm_raw_traces_ttl_days setting (TTL handled in DDL)
- Fix socket description leak in telemetry_manager docstring
- Add cloud-only comment to clickhouse-init.sql
- Update justfile to use separate compose file

Bug fix:
- Fix llm_config not being passed to ProviderTrace in telemetry
- Now correctly populates provider, model, is_byok for all LLM calls
- Affects both request_async_with_telemetry and log_provider_trace_async

DDL optimizations:
- Add secondary indexes (bloom_filter for agent_id, model, step_id)
- Add minmax indexes for is_byok, is_error
- Change model and error_type to LowCardinality for faster GROUP BY

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* refactor: rename llm_raw_traces -> llm_traces

Address review feedback that "raw" is misleading since we denormalize fields.

Renames:
- Table: llm_raw_traces -> llm_traces
- Schema: LLMRawTrace -> LLMTrace
- Files: llm_raw_trace_{reader,writer}.py -> llm_trace_{reader,writer}.py
- Setting: store_llm_raw_traces -> store_llm_traces

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* fix: update workflow references to llm_traces

Missed renaming table name in CI workflow files.

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* fix: update clickhouse_direct -> clickhouse_analytics in docstring

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* chore: remove inaccurate OTEL size limit comments

The 4MB limit is our own truncation logic, not an OTEL protocol limit.
The real benefit is denormalized columns for analytics queries.

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* chore: remove local ClickHouse dev setup (cloud-only feature)

- Delete clickhouse-init.sql and compose.clickhouse.yaml
- Remove local clickhouse just commands
- Update CI to use cloud DDL with MergeTree for testing

clickhouse_analytics is a cloud-only feature. For local dev, use postgres backend.

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* fix: restore compose.yaml to match main

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* refactor: merge clickhouse_analytics into clickhouse backend

Per review feedback - having two separate backends was confusing.

Now the clickhouse backend:
- Writes to llm_traces table (denormalized for cost analytics)
- Reads from OTEL traces table (will cut over to llm_traces later)

Config: LETTA_TELEMETRY_PROVIDER_TRACE_BACKEND=postgres,clickhouse

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* fix: correct path to DDL file in CI workflow

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* chore: add provider index to DDL for faster filtering

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* fix: configure telemetry backend in clickhouse tests

Tests need to set telemetry_settings.provider_trace_backends to include
'clickhouse', otherwise traces are routed to default postgres backend.

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* fix: set provider_trace_backend field, not property

provider_trace_backends is a computed property, need to set the
underlying provider_trace_backend string field instead.

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* fix: error trace test and error_type extraction

- Add TelemetryManager to error trace test so traces get written
- Fix error_type extraction to check top-level before nested error dict

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* fix: use provider_trace.id for trace correlation across backends

- Pass provider_trace.id to LLMTrace instead of auto-generating
- Log warning if ID is missing (shouldn't happen, helps debug)
- Fallback to new UUID only if not set

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* fix: trace ID correlation and concurrency issues

- Strip "provider_trace-" prefix from ID for UUID storage in ClickHouse
- Add asyncio.Lock to serialize writes (clickhouse_connect not thread-safe)
- Fix Anthropic prompt_tokens to include cached tokens for cost analytics
- Log warning if provider_trace.id is missing

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---------

Co-authored-by: Letta <noreply@letta.com>
Co-authored-by: Caren Thomas <carenthomas@gmail.com>
2026-02-24 10:52:06 -08:00
jnjpng
24ea7dbaed feat: include tools as part of token estimate in compact (#9242)
* base

* fix
2026-02-24 10:52:06 -08:00
Ari Webb
0bbb9c9bc0 feat: add reasoning zai openrouter (#9189)
* feat: add reasoning zai openrouter

* add openrouter reasoning

* stage + publish api

* openrouter reasoning always on

* revert

* fix

* remove reference

* do
2026-02-24 10:52:06 -08:00
jnjpng
d28ccc0be6 feat: add summary message and event on compaction (#9144)
* base

* update

* update

* revert formatting

* routes

* legacy

* fix

* review

* update
2026-02-24 10:52:05 -08:00
Kian Jones
b0f8e16ac0 fix: check both unique constraints in provider model sync (#9193)
The sync_provider_models_async function was only checking for existing
models by (handle, organization_id, model_type) before creating, but
the database has a second unique constraint on (name, provider_id,
model_type). This caused UniqueConstraintViolationError when a model
with the same name/provider already existed under a different handle.

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2026-02-24 10:52:05 -08:00
Kevin Lin
3a13c63f60 fix: preserve slashes in memory block paths (#9172)
Remove .replace("/", "_") from memory block label processing to allow hierarchical memory organization with slashes.

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2026-01-29 12:44:04 -08:00
Kian Jones
c1a02fa180 feat: add metadata-only provider trace storage option (#9155)
* feat: add metadata-only provider trace storage option

Add support for writing provider traces to a lightweight metadata-only
table (~1.5GB) instead of the full table (~725GB) since request/response
JSON is now stored in GCS.

- Add `LETTA_TELEMETRY_PROVIDER_TRACE_PG_METADATA_ONLY` setting
- Create `provider_trace_metadata` table via alembic migration
- Conditionally write to new table when flag is enabled
- Include backfill script for migrating existing data

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* chore: regenerate API spec and SDK

* fix: use composite PK (created_at, id) for provider_trace_metadata

Aligns with GCS partitioning structure (raw/date=YYYY-MM-DD/{id}.json.gz)
and enables efficient date-range queries via the B-tree index.

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* ammendments

* fix: add bulk data copy to migration

Copy existing provider_traces metadata in-migration instead of separate
backfill script. Creates indexes after bulk insert for better performance.

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* fix: remove data copy from migration, create empty table only

Old data stays in provider_traces, new writes go to provider_trace_metadata
when flag is enabled. Full traces are in GCS anyway.

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* fix: address PR comments

- Remove GCS mention from ProviderTraceMetadata docstring
- Move metadata object creation outside session context

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* fix: reads always use full provider_traces table

The metadata_only flag should only control writes. Reads always go to
the full table to avoid returning ProviderTraceMetadata where
ProviderTrace is expected.

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* feat: enable metadata-only provider trace writes in prod

Add LETTA_TELEMETRY_PROVIDER_TRACE_PG_METADATA_ONLY=true to all
Helm values (memgpt-server and lettuce-py, prod and dev).

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---------

Co-authored-by: Letta <noreply@letta.com>
2026-01-29 12:44:04 -08:00
amysguan
69cad47e6a fix: respect enable_reasoner setting from .af imports instead of falling back to model defaults (#9163)
Co-authored-by: Amy Guan <amy@letta.com>
2026-01-29 12:44:04 -08:00
Ari Webb
a798cc90c4 fix: openrouter provider (#9166)
* fix: openrouter provider

* just stage publish api

* web openapi
2026-01-29 12:44:04 -08:00
Ari Webb
9ce1249738 feat: openrouter byok (#9148)
* feat: openrouter byok

* new client is unnecessary

* revert json diffs
2026-01-29 12:44:04 -08:00
Shubham Naik
bb2145c24c connections (#9113)
* chore: release code

* chore: release code

* chore: release code

* chore: release code

* chore: release code

* chore: change paths

* chore: change paths

* chore: change paths

* chore: change paths

* chore: change paths

* chore: change paths

* chore: change paths

* chore: change paths

* chore: change paths

* chore: change paths

* chore: change paths

* chore: change paths

* chore: change paths

* chore: change paths

* chore: change paths

* chore: change paths

* chore: change paths

* chore: change paths

* chore: change paths

* chore: change paths

* chore: change paths

* chore: change paths

* chore: remote

* chore: support  multi project chat
2026-01-29 12:44:04 -08:00
Kian Jones
42b1e741dc fix: prevent duplicate block attachment in sleeptime agents (#9150)
Check if a block with the same label already exists before attaching
to sleeptime agents. This prevents UniqueConstraintViolationError on
the (agent_id, block_label) constraint when the same block is attached
multiple times due to race conditions.

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Co-authored-by: Letta <noreply@letta.com>
2026-01-29 12:44:04 -08:00
Ari Webb
04e6d668ec fix: make it so sync updates model_endpoint info (#9138) 2026-01-29 12:44:04 -08:00
Charles Packer
0c016d3ee3 fix(core): correct cursor direction for descending pagination in list_agent_blocks_async (#9122)
The cursor-based pagination was not accounting for sort order. When using
descending order (the default), "after cursor X" should return items with
id < X (items that come after X in the descending result set), but the code
was using id > X which caused infinite loops in clients iterating through pages.

This fix adjusts the cursor comparison based on the sort order:
- ascending: after=id > X, before=id < X
- descending: after=id < X, before=id > X

Note: Other pagination methods (list_agent_sources_async, list_agent_tools_async,
list_agent_groups_async) may have the same issue and should be audited.

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Co-authored-by: Letta <noreply@letta.com>
2026-01-29 12:44:04 -08:00
cthomas
674bfe95ec fix: no default actor setting check (#9124)
* fix: no default actor setting check

* prevent default actor creation in fallback
2026-01-29 12:44:04 -08:00
Kian Jones
0099a95a43 fix(sec): first pass of ensuring actor id is required everywhere (#9126)
first pass of ensuring actor id is required
2026-01-29 12:44:04 -08:00
Sarah Wooders
b34ad43691 feat: add minimax byok to ui (#9101)
* fix: patch minimax

* feat: add frontend changes for minimax

* add logo, fix backend

* better check for is minimax

* more references fixed for minimax

* start revering unnecessary changes

* revert backend changes, just ui

* fix minimax fully

* fix test

* add key to deploy action

---------

Co-authored-by: Ari Webb <ari@letta.com>
Co-authored-by: Ari Webb <arijwebb@gmail.com>
2026-01-29 12:44:04 -08:00
Shelley Pham
5dc70e48eb Shelley/let 7218 editor should be compatible with typescript [LET-7218] (#9087)
* fix python icon not showing up

* make typescript compatible for updating tools in typescript

* Update flags.ts

* display tools properly in navigation

* add default json schema to newly created tools

* add typescript to code editor

* make editor typescript compatible

* Update ToolsEditor.tsx

* typescript ocmpatible editor

* sandbox stuff

* update breadcrumb icon

* pass in source type to tool simulator

* undo

* Update tool-editor.cy.ts
2026-01-29 12:44:04 -08:00
github-actions[bot]
1d1bb29a43 feat: add override_model support for agent file import (#9058) 2026-01-29 12:44:04 -08:00
cthomas
4c2253dc76 fix: use repr() fallback for empty exception messages in error logging (#9047)
**Problem:**
Error logs showed empty detail fields when exceptions had no message:
```
Error during step processing:
Run run-xxx stopped with unknown error: , error_data: {...'detail': ''}
```

This made debugging production issues difficult as the actual error type
was hidden.

**Root Cause:**
Python exceptions created with no arguments (e.g., `Exception()` or caught
and re-raised in certain ways) have `str(e) == ""`:

```python
e = Exception()
str(e)   # Returns ""
repr(e)  # Returns "Exception()"
```

When exceptions with empty string representations were caught, all logging
and error messages showed blank details.

**Fix:**
Use `str(e) or repr(e)` fallback pattern in 3 places:
1. `letta_agent_v3.py` stream() exception handler (line 406)
2. `letta_agent_v3.py` step() exception handler (line 928)
3. `streaming_service.py` generic exception handler (line 469)

**Result:**
- Error logs now show `Exception()` or similar instead of empty string
- Helps identify exception types even when message is missing
- Better production debugging without changing exception handling logic

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Co-authored-by: Letta <noreply@letta.com>
2026-01-29 12:44:04 -08:00
cthomas
ca40eff7bc fix: ensure stop_reason is always set when marking runs as failed (#9045)
**Problem:**
Production error showed runs being marked as failed with stop_reason=None,
which violates LettaStopReason's Pydantic schema (requires valid enum value).
This caused cascading validation errors that got stored in metadata.

Example error:
```
Run is already in a terminal state failed with stop reason None, but is being
updated with data {'status': 'failed', 'stop_reason': None, 'metadata':
{'error': "1 validation error for LettaStopReason\nstop_reason Input should
be 'end_turn', 'error', ... [type=enum, input_value=None]"}}
```

**Root Causes:**
1. routers/v1/agents.py had 3 exception handlers creating RunUpdate(status=failed)
   without stop_reason
2. Success path assumed result.stop_reason always exists (AttributeError if None)
3. run_manager.py tried to create LettaStopReason(stop_reason=None) when
   refreshing result messages

**Fixes:**
1. Added stop_reason=StopReasonType.error to 3 exception handlers
2. Added defensive None checks before accessing result.stop_reason.stop_reason
3. Added fallback to StopReasonType.error when pydantic_run.stop_reason is None

**Trigger:**
OpenAI BadRequestError for invalid tool schema → exception handlers marked
run as failed without stop_reason → validation error when constructing response

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Co-authored-by: Letta <noreply@letta.com>
2026-01-29 12:44:04 -08:00
Ari Webb
e5afbd0972 fix: base url wrong (#9040) 2026-01-29 12:44:04 -08:00
Sarah Wooders
25e9539a6e feat: add batch passage create and optional search query (#8866) 2026-01-29 12:44:04 -08:00
cthomas
c162de5127 fix: use shared event + .athrow() to properly set stream_was_cancelle… (#9019)
fix: use shared event + .athrow() to properly set stream_was_cancelled flag

**Problem:**
When a run is cancelled via /cancel endpoint, `stream_was_cancelled` remained
False because `RunCancelledException` was raised in the consumer code (wrapper),
which closes the generator from outside. This causes Python to skip the
generator's except blocks and jump directly to finally with the wrong flag value.

**Solution:**
1. Shared `asyncio.Event` registry for cross-layer cancellation signaling
2. `cancellation_aware_stream_wrapper` sets the event when cancellation detected
3. Wrapper uses `.athrow()` to inject exception INTO generator (not consumer-side raise)
4. All streaming interfaces check event in `finally` block to set flag correctly
5. `streaming_service.py` handles `RunCancelledException` gracefully, yields [DONE]

**Changes:**
- streaming_response.py: Event registry + .athrow() injection + graceful handling
- openai_streaming_interface.py: 3 classes check event in finally
- gemini_streaming_interface.py: Check event in finally
- anthropic_*.py: Catch RunCancelledException
- simple_llm_stream_adapter.py: Create & pass event to interfaces
- streaming_service.py: Handle RunCancelledException, yield [DONE], skip double-update
- routers/v1/{conversations,runs}.py: Pass event to wrapper
- integration_test_human_in_the_loop.py: New test for approval + cancellation

**Tests:**
- test_tool_call with cancellation (OpenAI models) 
- test_approve_with_cancellation (approval flow + concurrent cancel) 

**Known cosmetic warnings (pre-existing):**
- "Run already in terminal state" - agent loop tries to update after /cancel
- "Stream ended without terminal event" - background streaming timing race

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Co-authored-by: Letta <noreply@letta.com>
2026-01-29 12:44:04 -08:00
Kian Jones
e3fb00f970 feat(crouton): add orgId, userId, Compaction_Settings and LLM_Config (#9022)
* LC one shot?

* api changes

* fix summarizer nameerror
2026-01-29 12:44:04 -08:00
Ari Webb
5c06918042 fix: don't need embedding model for self hosted [LET-7009] (#8935)
* fix: don't need embedding model for self hosted

* stage publish api

* passes tests

* add test

* remove unnecessary upgrades

* update revision order db migrations

* add timeout for ci
2026-01-29 12:44:04 -08:00
Kian Jones
2bb4caffc3 fix: remove unused embedding generation (#9013)
* remove unused embedding generation

* prevent double embed

* fix embedding dimension comparison and valueerror
2026-01-29 12:43:53 -08:00
Ari Webb
5c1512237f fix: restore deleted provider session conflicts (#9001) 2026-01-29 12:43:53 -08:00
Kian Jones
4d256b3399 feat: add agent_id, run_id, step_id to summarization provider traces (#8996)
* feat: add agent_id, run_id, step_id to summarization provider traces

Summarization LLM calls were missing telemetry context (agent_id,
agent_tags, run_id, step_id), making it impossible to attribute
summarization costs to specific agents or trace them back to the
step that triggered compaction.

Changes:
- Add step_id param to simple_summary() and set_telemetry_context()
- Add agent_id, agent_tags, run_id, step_id to summarize_all() and
  summarize_via_sliding_window()
- Update Summarizer class to accept and pass telemetry context
- Update LettaAgentV3.compact() to pass full telemetry context
- Update LettaAgentV2.summarize_conversation_history() with run_id/step_id
- Update LettaAgent (v1) streaming methods with run_id param
- Add run_id/step_id to SummarizeParams for Temporal activities

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* fix: update test mock to accept new summarization params

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---------

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2026-01-29 12:43:53 -08:00
Kian Jones
1ab21af725 fix: safer type coersion for tools (#8990)
* mvp

* perfrom type coercion in sandbox

* fix: safely resolve typing annotations on host

Use an AST whitelist for generic annotations to avoid eval while keeping list/dict coercion working.

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---------

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2026-01-29 12:43:53 -08:00
Ari Webb
2e826577d9 fix: fix zai and others byok (#8991)
* fix: fix zai and other byok providers

* fix test

* get endpoint from typed provider and add test

* also add base_url on provider create
2026-01-29 12:43:53 -08:00
Kian Jones
7133083b81 fix: agent_tags for provider traces (#8989)
* add include tags

* include agent_tags and pass them into the adapter
2026-01-29 12:43:53 -08:00
Charles Packer
2fc592e0b6 feat(core): add image support in tool returns [LET-7140] (#8985)
* feat(core): add image support in tool returns [LET-7140]

Enable tool_return to support both string and ImageContent content parts,
matching the pattern used for user message inputs. This allows tools
executed client-side to return images back to the agent.

Changes:
- Add LettaToolReturnContentUnion type for text/image content parts
- Update ToolReturn schema to accept Union[str, List[content parts]]
- Update converters for each provider:
  - OpenAI Chat Completions: placeholder text for images
  - OpenAI Responses API: full image support
  - Anthropic: full image support with base64
  - Google: placeholder text for images
- Add resolve_tool_return_images() for URL-to-base64 conversion
- Make create_approval_response_message_from_input() async

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* fix(core): support images in Google tool returns as sibling parts

Following the gemini-cli pattern: images in tool returns are sent as
sibling inlineData parts alongside the functionResponse, rather than
inside it.

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* test(core): add integration tests for multi-modal tool returns [LET-7140]

Tests verify that:
- Models with image support (Anthropic, OpenAI Responses API) can see
  images in tool returns and identify the secret text
- Models without image support (Chat Completions) get placeholder text
  and cannot see the actual image content
- Tool returns with images persist correctly in the database

Uses secret.png test image containing hidden text "FIREBRAWL" that
models must identify to pass the test.

Also fixes misleading comment about Anthropic only supporting base64
images - they support URLs too, we just pre-resolve for consistency.

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* refactor: simplify tool return image support implementation

Reduce code verbosity while maintaining all functionality:
- Extract _resolve_url_to_base64() helper in message_helper.py (eliminates duplication)
- Add _get_text_from_part() helper for text extraction
- Add _get_base64_image_data() helper for image data extraction
- Add _tool_return_to_google_parts() to simplify Google implementation
- Add _image_dict_to_data_url() for OpenAI Responses format
- Use walrus operator and list comprehensions where appropriate
- Add integration_test_multi_modal_tool_returns.py to CI workflow

Net change: -120 lines while preserving all features and test coverage.

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Co-Authored-By: Letta <noreply@letta.com>

* fix(tests): improve prompt for multi-modal tool return tests

Make prompts more direct to reduce LLM flakiness:
- Simplify tool description: "Retrieves a secret image with hidden text. Call this function to get the image."
- Change user prompt from verbose request to direct command: "Call the get_secret_image function now."
- Apply to both test methods

This reduces ambiguity and makes tool calling more reliable across different LLM models.

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* fix bugs

* test(core): add google_ai/gemini-2.0-flash-exp to multi-modal tests

Add Gemini model to test coverage for multi-modal tool returns. Google AI already supports images in tool returns via sibling inlineData parts.

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* fix(ui): handle multi-modal tool_return type in frontend components

Convert Union<string, LettaToolReturnContentUnion[]> to string for display:
- ViewRunDetails: Convert array to '[Image here]' placeholder
- ToolCallMessageComponent: Convert array to '[Image here]' placeholder

Fixes TypeScript errors in web, desktop-ui, and docker-ui type-checks.

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---------

Co-authored-by: Letta <noreply@letta.com>
Co-authored-by: Caren Thomas <carenthomas@gmail.com>
2026-01-29 12:43:53 -08:00
Ari Webb
4ec6649caf feat: byok provider models in db also (#8317)
* feat: byok provider models in db also

* make tests and sync api

* fix inconsistent state with recreating provider of same name

* fix sync on byok creation

* update revision

* move stripe code for testing purposes

* revert

* add refresh byok models endpoint

* just stage publish api

* add tests

* reorder revision

* add test for name clashes
2026-01-29 12:43:53 -08:00
Kevin Lin
b5519f02fb feat: make tool return messages more explicit [LET-7145] (#8986)
prompt
2026-01-29 12:43:53 -08:00
Charles Packer
238894eebd fix(core): disable MCP stdio servers by default (#8969)
* fix(core): disable MCP stdio servers by default

Stdio MCP servers spawn local processes on the host, which is not
suitable for multi-tenant or shared server deployments. This change:

- Changes `mcp_disable_stdio` default from False to True
- Enforces the setting in `get_mcp_client()` and `create_mcp_server_from_config()`
- Users running local/single-user deployments can set MCP_DISABLE_STDIO=false
  to enable stdio-based MCP servers (e.g., for npx/uvx tools)

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* update ci

* push

---------

Co-authored-by: Letta <noreply@letta.com>
Co-authored-by: jnjpng <jin@letta.com>
Co-authored-by: Letta Bot <jinjpeng@gmail.com>
2026-01-29 12:43:53 -08:00
Ari Webb
5645ca8107 fix: use labels for error messages for builtin memory tools [LET-7095] (#8941)
* fix: use labels for error messages for builtin memory tools

* catch specific error
2026-01-29 12:43:53 -08:00
cthomas
5f58819bbf fix: false positives for token markers (#8942) 2026-01-29 12:43:23 -08:00
Ari Webb
7a104a74fe fix: allow conversation_search time only queries [LET-7094] (#8939)
fix: allow conversation_search time only queries
2026-01-19 15:54:44 -08:00
cthomas
b3a213a56f revert: fix: include assistant response in sliding window summarizati… (#8929)
revert: fix: include assistant response in sliding window summarization slice
2026-01-19 15:54:44 -08:00
cthomas
4be366470b fix: summarizer cutoff bug (#8928)
* fix: summarizer cutoff bug

* update comment with context
2026-01-19 15:54:44 -08:00
github-actions[bot]
90f3ab9184 fix: validate URL scheme in fetch_webpage to reject file:// URLs (#8889)
Adds validation to the fetch_webpage tool to ensure only HTTP/HTTPS URLs
are accepted. Previously, passing a file:// URL would cause an unhandled
requests.exceptions.InvalidSchema error. Now it raises a clear ValueError
with a helpful error message.

Fixes: requests.exceptions.InvalidSchema: No connection adapters were found for 'file://...'

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Co-authored-by: letta-code <248085862+letta-code@users.noreply.github.com>
Co-authored-by: datadog-official[bot] <datadog-official[bot]@users.noreply.github.com>
Co-authored-by: Letta <noreply@letta.com>
Co-authored-by: Kian Jones <11655409+kianjones9@users.noreply.github.com>
2026-01-19 15:54:44 -08:00
Kian Jones
2ee28c3264 feat: add telemetry source identifier (#8918)
* add telemetry source

* add source to provider trave
2026-01-19 15:54:44 -08:00
github-actions[bot]
15de765876 fix: downgrade MCP tool error logs from warning to debug (#8846)
Change the log level for expected MCP tool execution failures (ToolError,
McpError) from warning to debug in fastmcp_client.py to match base_client.py.

These errors occur when an LLM calls an MCP tool with missing/invalid
arguments - they are expected user-facing issues from external MCP servers,
not system errors that should trigger production alerts.

Fixes #8845

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Co-authored-by: datadog-official[bot] <datadog-official[bot]@users.noreply.github.com>
Co-authored-by: Kian Jones <11655409+kianjones9@users.noreply.github.com>
2026-01-19 15:54:43 -08:00
github-actions[bot]
940d648d42 fix(mcp): handle MCP tool errors gracefully to prevent Datadog alerts (#8687)
MCP tool errors (ToolError, McpError) are expected user-facing errors
from external MCP servers (e.g., "No connected account found"). These
were propagating through @trace_method decorator and being recorded
as errors in Datadog APM.

Changes:
- Add try/except to catch expected MCP errors in ExternalMCPToolExecutor
- Return ToolExecutionResult with status="error" instead of re-raising
- Log expected errors at INFO level instead of letting them trace as ERROR
- Remove stray 'pass' statement that was a no-op

Fixes #8685

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Co-authored-by: letta-code <248085862+letta-code@users.noreply.github.com>
Co-authored-by: datadog-official[bot] <datadog-official[bot]@users.noreply.github.com>
Co-authored-by: Kian Jones <11655409+kianjones9@users.noreply.github.com>
2026-01-19 15:54:43 -08:00
Kian Jones
81b5d71889 feat: add agents and log error properly (#8914)
* add agents and log error properly

* fix llm stream adapter
2026-01-19 15:54:43 -08:00
Kian Jones
b0dfdd2725 fix commas in justfile helm secret setting and bug with missing metadata (#8874) 2026-01-19 15:54:43 -08:00
Kian Jones
a92e868ee6 feat: centralize telemetry logging at LLM client level (#8815)
* feat: centralize telemetry logging at LLM client level

Moves telemetry logging from individual adapters to LLMClientBase:
- Add TelemetryStreamWrapper for streaming telemetry on stream close
- Add request_async_with_telemetry() for non-streaming requests
- Add stream_async_with_telemetry() for streaming requests
- Add set_telemetry_context() to configure agent_id, run_id, step_id

Updates adapters and agents to use new pattern:
- LettaLLMAdapter now accepts agent_id/run_id in constructor
- Adapters call set_telemetry_context() before LLM requests
- Removes duplicate telemetry logging from adapters
- Enriches traces with agent_id, run_id, call_type metadata

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* fix: accumulate streaming response content for telemetry

TelemetryStreamWrapper now extracts actual response data from chunks:
- Content text (concatenated from deltas)
- Tool calls (id, name, arguments)
- Model name, finish reason, usage stats

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* refactor: move streaming telemetry to caller (option 3)

- Remove TelemetryStreamWrapper class
- Add log_provider_trace_async() helper to LLMClientBase
- stream_async_with_telemetry() now just returns raw stream
- Callers log telemetry after processing with rich interface data

Updated callers:
- summarizer.py: logs content + usage after stream processing
- letta_agent.py: logs tool_call, reasoning, model, usage

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Co-Authored-By: Letta <noreply@letta.com>

* fix: pass agent_id and run_id to parent adapter class

LettaLLMStreamAdapter was not passing agent_id/run_id to parent,
causing "unexpected keyword argument" errors.

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---------

Co-authored-by: Letta <noreply@letta.com>
2026-01-19 15:54:43 -08:00
Kian Jones
9418ab9815 feat: add provider trace backend abstraction for multi-backend telemetry (#8814)
* feat: add provider trace backend abstraction for multi-backend telemetry

Introduces a pluggable backend system for provider traces:
- Base class with async/sync create and read interfaces
- PostgreSQL backend (existing behavior)
- ClickHouse backend (via OTEL instrumentation)
- Socket backend (writes to Unix socket for crouton sidecar)
- Factory for instantiating backends from config

Refactors TelemetryManager to use backends with support for:
- Multi-backend writes (concurrent via asyncio.gather)
- Primary backend for reads (first in config list)
- Graceful error handling per backend

Config: LETTA_TELEMETRY_PROVIDER_TRACE_BACKEND (comma-separated)
Example: "postgres,socket" for dual-write to Postgres and crouton

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* feat: add protocol version to socket backend records

Adds PROTOCOL_VERSION constant to socket backend:
- Included in every telemetry record sent to crouton
- Must match ProtocolVersion in apps/crouton/main.go
- Enables crouton to detect and reject incompatible messages

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* fix: remove organization_id from ProviderTraceCreate calls

The organization_id is now handled via the actor parameter in the
telemetry manager, not through ProviderTraceCreate schema. This fixes
validation errors after changing ProviderTraceCreate to inherit from
BaseProviderTrace which forbids extra fields.

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* consolidate provider trace

* add clickhouse-connect to fix bug on main lmao

* auto generated sdk changes, and deployment details, and clikchouse prefix bug and added fields to runs trace return api

* auto generated sdk changes, and deployment details, and clikchouse prefix bug and added fields to runs trace return api

* consolidate provider trace

* consolidate provider trace bug fix

---------

Co-authored-by: Letta <noreply@letta.com>
2026-01-19 15:54:43 -08:00