Sprint 4C: AG-UI adapter — PAEvent to frontend stream + SSE helper

Sprint 4B: A2A — AgentCard, A2AClient for agent-to-agent delegation

Sprint 4A: MCP bridge — discover, validate, call remote tools via MCP

Sprint 4: protocols package init

Sprint 3: memory_homeostasis.py — budget, archive, consolidation, Q-retriever

Sprint 2: update runtime __init__ with checkpoint + state exports

Sprint 2: checkpoint.py — Checkpointer protocol + InMemory/JSONL/SQLite implementations

Sprint 2: runtime/state.py — typed RunState for durable execution

v3.0.0a1: add runtime event system exports, bump version

Sprint 1: streaming_v3 — AG-UI compatible adapter + legacy bridge

Sprint 1: EventBus — async pub/sub with backpressure, replay, lane isolation

Sprint 1: canonical event schema (PAEvent, EventKind, Visibility)

Sprint 1: runtime package init

v2.1.1: sync version with PyPI

v2.1.0: creative names (Spark/Flow/swarm/Council/Vault) + prod test 19/19 pass

v2.1.0: creative names (Spark/Flow/swarm/Council/Vault) + prod test 19/19 pass

Track 4: breakthroughs + TOML prompts — purpose_agent/breakthroughs.py

Track 3: TOML prompts + PURPOSE_LEARNING.md whitepaper — purpose_agent/purpose_function.py

Track 3: TOML prompts + PURPOSE_LEARNING.md whitepaper — purpose_agent/actor.py

Track 3: TOML prompts + PURPOSE_LEARNING.md whitepaper — purpose_agent/robust_parser.py

fix: universal parsing + OpenRouter + state bug — purpose_agent/orchestrator.py

fix: universal parsing + OpenRouter + state bug — purpose_agent/optimizer.py

fix: universal parsing + OpenRouter + state bug — purpose_agent/purpose_function.py

fix: universal parsing + OpenRouter + state bug — purpose_agent/actor.py

fix: universal parsing + OpenRouter + state bug — purpose_agent/llm_backend.py

fix: universal parsing + OpenRouter + state bug — purpose_agent/robust_parser.py

fix: real-model robustness — purpose_agent/purpose_function.py

fix: real-model robustness — purpose_agent/actor.py

Track 1: purpose_agent/slm_backends.py

Track 1: purpose_agent/experience_replay.py

Track 1: purpose_agent/tools.py

Track 1: purpose_agent/llm_backend.py

Track 1: purpose_agent/__init__.py

release: Purpose Agent v2.0.0 — updated __init__.py with all V2 + research exports

V2 merge: purpose_agent/unified.py

V2 merge: purpose_agent/tools.py

V2 merge: purpose_agent/retroformer.py

V2 merge: purpose_agent/llm_compiler.py

V2 merge: purpose_agent/prompt_optimizer.py

V2 merge: purpose_agent/self_taught.py

V2 merge: purpose_agent/meta_rewarding.py

V2 merge: purpose_agent/benchmark_v2.py

V2 merge: purpose_agent/evalport.py

V2 merge: purpose_agent/memory_ci.py

V2 merge: purpose_agent/immune.py

V2 merge: purpose_agent/compiler.py

V2 merge: purpose_agent/memory.py

V2 merge: purpose_agent/trace.py

V2 merge: purpose_agent/v2_types.py

feat: Easy API — purpose(), Team, quickstart wizard, template auto-detection