> ## Documentation Index
> Fetch the complete documentation index at: https://docs.qredence.ai/llms.txt
> Use this file to discover all available pages before exploring further.

# Session runtime (`packages/coding-agent/src/core/session-manager.ts`)

> Manages session persistence (SessionHeader, SessionMessageEntry, NewSessionOptions), transcript recording, branch summaries, compaction entries. Key constants:...

Manages session persistence (`SessionHeader`, `SessionMessageEntry`, `NewSessionOptions`), transcript recording, branch summaries, compaction entries. Key constants: `SESSION_STREAMING_LOAD_THRESHOLD_BYTES` (128 MB), `SESSION_ASYNC_PARSE_YIELD_BYTES` (4 MB). Session version `CURRENT_SESSION_VERSION = 3`. Reads/session search uses `SESSION_LIST_SEARCH_TEXT_MAX_CHARS` (64 KB) and `SESSION_LIST_PARSE_MAX_LINE_CHARS` (1 MB).

Related: [Coding agent index](/fleet-prime-agent/packages--coding-agent), [Compaction](/fleet-prime-agent/packages--coding-agent--refinement)