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feat: unify prompt context and memory lifecycle - #938

Merged
alcholiclg merged 21 commits into
modelscope:mainfrom
alcholiclg:fix/runtime-robustness
Aug 13, 2026
Merged

feat: unify prompt context and memory lifecycle#938
alcholiclg merged 21 commits into
modelscope:mainfrom
alcholiclg:fix/runtime-robustness

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Change Summary

  • Build the default agent prompt from layered, live workspace files (SOUL.md, AGENTS.md, and PROFILE.md) with per-round refresh and durable change notices.
  • Improve long-term memory consistency with durable vector recall, background delta ingestion, configurable recall size, and hot-reloaded MEMORY.md snapshots—including clear/delete handling.
  • Keep custom agent definitions isolated, avoid duplicate project-config merges, honor MS_AGENT_HOME, and package Agent Hub defaults correctly.

Testing

  • Added coverage for prompt assembly, workspace-file reloads and notices, memory recall placement, MEMORY.md hot reload, config precedence, and packaged defaults.

Related issue number

Checklist

  • The pull request title is a good summary of the changes - it will be used in the changelog
  • Unit tests for the changes exist
  • Run pre-commit install and pre-commit run --all-files before git commit, and passed lint check.
  • Documentation reflects the changes where applicable

The orchestrator now owns the write discipline around a backend:
- schedule_add() runs the extraction-LLM + embedding cost (seconds) in a
  background task; flush_pending() is the teardown barrier so the last
  write is never dropped, and an inline fallback keeps writes when no
  loop is running.
- retrieval/ingestion/flush serialize on one per-store asyncio lock
  (embedded qdrant underneath is lock-free single-client code).
- a content-hash delta ledger (<base_dir>/ingest_state.json) makes each
  ingest send only messages the store has not seen; hashes are recorded
  only after a confirmed write, so a failed ingest retries naturally.
- ingest_status reports the last outcome (state/count/error/pending) so
  a UI can show memory working instead of silence.

Mem0Backend: per-turn retrieval cache (rounds 2..N of a tool-calling
turn reuse round 1's search instead of paying an embedding round-trip
each), on_messages returns the event count and propagates failures --
the orchestrator is the swallow-and-report layer now and needs the
exception to keep failed messages un-marked for retry.
…-side close

- add_memory(add_after_step) now fires only when a round closes the turn
  (assistant reply with no tool calls) and dispatches through the
  backend's schedule_add when available: tool rounds are intermediate
  state, and ingesting every round cost O(rounds x history) extraction
  calls where the closing ingest covers the whole turn.
- an interrupted round advances the ingest ledger WITHOUT ingesting
  (mark_ingested): a half-finished answer is not durable conversational
  truth and must not be swept into the next turn's delta.
- cleanup_tools drains scheduled ingestion (flush only -- memory
  instances are shared across agents of one store, so closing here would
  yank the store from a sibling agent); the new
  SharedMemoryManager.close_matching(base_dir) is the owner-of-last-
  resort that actually closes instances and releases the embedded
  store's exclusive file lock.
The number of recalled memories injected per turn was hardcoded twice
(search default 20, then a [:10] formatting slice). MemoryConfig gains
recall_top_k (default 10, read from the unified_memory node) and the
mem0 adapter threads it through search and formatting — consumers can
now size recall to their context budget.
…E) instead of scattered config fields, gated by personalization.enabled.

When those files change mid-conversation the next user turn carries a durable <system-reminder> naming them, so the model can tell a changed file from its own faulty memory.
…end's MEMORY.md snapshot in step with edits made outside the agent.

Also translates the memory tool descriptions and prompt headings to English.
# Conflicts:
#	.gitignore
#	ms_agent/memory/unified/backends/mem0_adapter.py
#	ms_agent/memory/unified/orchestrator.py
#	setup.py
…ts last entry deleted, instead of leaving the previous round's block in place.
@alcholiclg
alcholiclg merged commit 52c6cca into modelscope:main Aug 13, 2026
1 check was pending
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2 participants