subhash7476 a558884c3a
perf(summarization): skip the summarizer LLM call for an input already proven no-op (#6318)
* perf(summarization): skip the summarizer LLM call for an input already proven no-op

When the exact rendered summarizer prompt (plus candidate models) previously
produced output byte-identical to the current summary_text, reuse that summary
instead of calling the LLM. Compaction proceeds through the normal path, so
messages, hooks and state transitions are unchanged.

- Only proven no-op inputs are cached (bounded LRU, thread-safe); failed
  attempts are never cached and any cache error falls back to the LLM call.
- The middleware:summarize event gains changes.llm_call_skipped.
- Applies to both compact_state and acompact_state.

Builds on the per-call telemetry in the P0 branch.

Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>

* fix(summarization): keep fallback no-ops retryable

---------

Co-authored-by: Claude Sonnet 5.5 <noreply@anthropic.com>
Co-authored-by: Willem Jiang <willem.jiang@gmail.com>
2026-10-05 22:04:36 +08:00
..

Documentation

This directory contains detailed documentation for the DeerFlow backend.

Document Description
ARCHITECTURE.md System architecture overview
API.md Complete API reference
AUTH_DESIGN.md User authentication, CSRF, platform-trust (IM / Internal Auth), and per-user isolation
SSO.md OIDC / SSO single sign-on
IM_CHANNEL_CONNECTIONS.md IM channel user binding (channel_connections)
CONFIGURATION.md Configuration options
SETUP.md Quick setup guide

Feature Documentation

Document Description
STREAMING.md Token-level streaming design: Gateway vs DeerFlowClient paths, stream_mode semantics, per-id dedup
RUN_EVENT_STREAM.md Persisted run event stream contract: envelope, producers, consumers, and known gaps
FILE_UPLOAD.md File upload functionality
PATH_EXAMPLES.md Path types and usage examples
SANDBOX_MEMORY_PROFILING.md Sandbox memory baseline and runtime comparison guide
summarization.md Context summarization feature
plan_mode_usage.md Plan mode with TodoList
AUTO_TITLE_GENERATION.md Automatic title generation

Development

Document Description
TODO.md Planned features and known issues

Getting Started

  1. New to DeerFlow? Start with SETUP.md for quick installation
  2. Configuring the system? See CONFIGURATION.md
  3. Understanding the architecture? Read ARCHITECTURE.md
  4. Building integrations? Check API.md for API reference

Document Organization

docs/
├── README.md                  # This file
├── ARCHITECTURE.md            # System architecture
├── API.md                     # API reference
├── AUTH_DESIGN.md             # User authentication and isolation design
├── CONFIGURATION.md           # Configuration guide
├── SETUP.md                   # Setup instructions
├── FILE_UPLOAD.md             # File upload feature
├── PATH_EXAMPLES.md           # Path usage examples
├── summarization.md           # Summarization feature
├── plan_mode_usage.md         # Plan mode feature
├── STREAMING.md               # Token-level streaming design
├── RUN_EVENT_STREAM.md        # Persisted run event stream contract
├── AUTO_TITLE_GENERATION.md   # Title generation
├── TITLE_GENERATION_IMPLEMENTATION.md  # Title implementation details
└── TODO.md                    # Roadmap and issues