feat: release version 2.3.0 with new autonomous missions capabilities

- Introduced the `devsper.missions` package for long-horizon autonomous execution across various workflows.
- Added mission planner, agents for research and coding workflows, and an iteration engine for quality-driven execution.
- Implemented mission memory for persisting findings and decisions, along with support for long-running missions.
- Enhanced the SDK by exporting `MissionRunner` for easier mission execution and added runtime tests for mission planning.
- Updated the TUI to include mission execution paths and a dashboard for mission progress visualization.

Author: rithulkamesh

CHANGELOG.md

@@ -7,6 +7,24 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+## [2.3.0] — 2026-03-30
+
+### Added
+
+- **Autonomous Missions capability layer** — New `devsper.missions` package for long-horizon autonomous execution across research, coding, and experiment workflows.
+- **Mission planner and DAG generation** — Added `missions/mission_planner.py` to break goals into mission tasks, assign role agents, and define dependency graphs.
+- **Research mission workflow** — Added mission agents (`researcher_agent`, `reviewer_agent`, `writer_agent`, `editor_agent`) and end-to-end flow: research → critique → improve → finalize.
+- **Coding mission workflow** — Added mission agents (`architect_agent`, `coder_agent`, `tester_agent`, `debugger_agent`, `docs_agent`) and end-to-end flow: design → code → test → fix → document.
+- **Iteration engine** — Added `missions/iteration_loop.py` for quality-threshold-driven iterative execution with critique/improvement cycles.
+- **Mission memory** — Added `missions/mission_memory.py` to persist research findings, decisions, and experiment artifacts per mission.
+- **Long-running mission support** — Added checkpointing/resume support in `missions/mission_runner.py` plus HITL task-gating callback support.
+- **Mission UI** — Added dashboard `MissionView` and TUI mission execution path (`mission:research ...`, `mission:coding ...`, `mission:experiment ...`) to show goal, DAG, and iteration progress.
+
+### Changed
+
+- **SDK surface** — Exported `MissionRunner` from `devsper` package root for straightforward mission execution from Python.
+- **Testing** — Added runtime tests for mission DAG planning and checkpoint creation.
+
 ## [2.2.0] — 2026-03-28
 
 ### Added

devsper/__init__.py

@@ -20,7 +20,7 @@
 
 from devsper.config import get_config
 
-__all__ = ["Swarm", "get_config", "__version__"]
+__all__ = ["Swarm", "MissionRunner", "get_config", "__version__"]
 
 
 def __getattr__(name: str):
@@ -29,4 +29,8 @@ def __getattr__(name: str):
         from devsper.swarm.swarm import Swarm  # local import
 
         return Swarm
+    if name == "MissionRunner":
+        from devsper.missions import MissionRunner  # local import
+
+        return MissionRunner
     raise AttributeError(name)

devsper/missions/__init__.py

@@ -0,0 +1,16 @@
+from devsper.missions.iteration_loop import IterationEngine
+from devsper.missions.mission_memory import MissionMemory
+from devsper.missions.mission_planner import MissionPlanner
+from devsper.missions.mission_runner import MissionResult, MissionRunner
+from devsper.missions.models import MissionDAG, MissionTask, MissionType
+
+__all__ = [
+    "IterationEngine",
+    "MissionMemory",
+    "MissionPlanner",
+    "MissionRunner",
+    "MissionResult",
+    "MissionDAG",
+    "MissionTask",
+    "MissionType",
+]

devsper/missions/base_agent.py

@@ -0,0 +1,22 @@
+from __future__ import annotations
+
+from dataclasses import dataclass
+
+from devsper.utils.models import generate
+
+
+@dataclass(slots=True)
+class MissionAgent:
+    name: str
+    role_prompt: str
+    model_name: str = "auto"
+
+    def run(self, goal: str, current: str = "", context: str = "") -> str:
+        prompt = (
+            f"{self.role_prompt}\n\n"
+            f"Goal:\n{goal}\n\n"
+            f"Current Draft:\n{current}\n\n"
+            f"Context:\n{context}\n\n"
+            "Return a concrete, high-quality output."
+        )
+        return (generate(self.model_name, prompt) or "").strip()

devsper/missions/coding/__init__.py

@@ -0,0 +1,13 @@
+from devsper.missions.coding.architect_agent import ArchitectAgent
+from devsper.missions.coding.coder_agent import CoderAgent
+from devsper.missions.coding.tester_agent import TesterAgent
+from devsper.missions.coding.debugger_agent import DebuggerAgent
+from devsper.missions.coding.docs_agent import DocsAgent
+
+__all__ = [
+    "ArchitectAgent",
+    "CoderAgent",
+    "TesterAgent",
+    "DebuggerAgent",
+    "DocsAgent",
+]

devsper/missions/coding/architect_agent.py

@@ -0,0 +1,10 @@
+from devsper.missions.base_agent import MissionAgent
+
+
+class ArchitectAgent(MissionAgent):
+    def __init__(self, model_name: str = "auto") -> None:
+        super().__init__(
+            name="architect_agent",
+            role_prompt="You are an architect agent. Produce robust design and implementation plan.",
+            model_name=model_name,
+        )

devsper/missions/coding/coder_agent.py

@@ -0,0 +1,10 @@
+from devsper.missions.base_agent import MissionAgent
+
+
+class CoderAgent(MissionAgent):
+    def __init__(self, model_name: str = "auto") -> None:
+        super().__init__(
+            name="coder_agent",
+            role_prompt="You are a coder agent. Implement working, maintainable code.",
+            model_name=model_name,
+        )

devsper/missions/coding/debugger_agent.py

@@ -0,0 +1,10 @@
+from devsper.missions.base_agent import MissionAgent
+
+
+class DebuggerAgent(MissionAgent):
+    def __init__(self, model_name: str = "auto") -> None:
+        super().__init__(
+            name="debugger_agent",
+            role_prompt="You are a debugger agent. Diagnose failures and provide concrete fixes.",
+            model_name=model_name,
+        )

devsper/missions/coding/docs_agent.py

@@ -0,0 +1,10 @@
+from devsper.missions.base_agent import MissionAgent
+
+
+class DocsAgent(MissionAgent):
+    def __init__(self, model_name: str = "auto") -> None:
+        super().__init__(
+            name="docs_agent",
+            role_prompt="You are a docs agent. Produce clear setup, usage, and maintenance docs.",
+            model_name=model_name,
+        )

devsper/missions/coding/tester_agent.py

@@ -0,0 +1,10 @@
+from devsper.missions.base_agent import MissionAgent
+
+
+class TesterAgent(MissionAgent):
+    def __init__(self, model_name: str = "auto") -> None:
+        super().__init__(
+            name="tester_agent",
+            role_prompt="You are a tester agent. Validate behavior and identify failing cases.",
+            model_name=model_name,
+        )