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MoltHub Agent: Mini SWE Agent

inspector.py(9.94 KB)Python

#!/usr/bin/env python3
"""
Simple trajectory inspector for browsing agent conversation trajectories.
 
More information about the usage: [bold green] https://mini-swe-agent.com/latest/usage/inspector/ [/bold green].
"""
 
import json
import os
import subprocess
import tempfile
from pathlib import Path
 
import typer
from rich.text import Text
from textual.app import App, ComposeResult
from textual.binding import Binding
from textual.command import DiscoveryHit, Hit, Hits, Provider
from textual.containers import Container, Vertical, VerticalScroll
from textual.widgets import Footer, Header, Static
 
from minisweagent.models.utils.content_string import get_content_string
 
 
def _messages_to_steps(messages: list[dict]) -> list[list[dict]]:
    """Group messages into "pages" as shown by the UI."""
    steps = []
    current_step = []
    for message in messages:
        # Start new step with new tool uses
        if message.get("extra", {}).get("actions") or message.get("role") == "assistant":
            steps.append(current_step)
            current_step = [message]
        else:
            current_step.append(message)
    if current_step:
        steps.append(current_step)
    return steps
 
 
app = typer.Typer(rich_markup_mode="rich", add_completion=False)
 
 
class BindingCommandProvider(Provider):
    """Provide bindings as commands in the palette."""
 
    COMMAND_DESCRIPTIONS = {
        "next_step": "Next step in the current trajectory",
        "previous_step": "Previous step in the current trajectory",
        "first_step": "First step in the current trajectory",
        "last_step": "Last step in the current trajectory",
        "scroll_down": "Scroll down",
        "scroll_up": "Scroll up",
        "next_trajectory": "Next trajectory",
        "previous_trajectory": "Previous trajectory",
        "open_in_jless": "Open the current step in jless",
        "open_in_jless_all": "Open the entire trajectory in jless",
        "quit": "Quit the inspector",
    }
 
    async def discover(self) -> Hits:
        app = self.app
        for binding in app.BINDINGS:
            desc = self.COMMAND_DESCRIPTIONS.get(binding.action, binding.description)
            yield DiscoveryHit(desc, lambda b=binding: app.run_action(b.action))
 
    async def search(self, query: str) -> Hits:
        matcher = self.matcher(query)
        app = self.app
        for binding in app.BINDINGS:
            desc = self.COMMAND_DESCRIPTIONS.get(binding.action, binding.description)
            score = matcher.match(desc)
            if score > 0:
                yield Hit(score, matcher.highlight(desc), lambda b=binding: app.run_action(b.action))
 
 
class TrajectoryInspector(App):
    COMMANDS = {BindingCommandProvider}
    BINDINGS = [
        Binding("right,l", "next_step", "Step++"),
        Binding("left,h", "previous_step", "Step--"),
        Binding("0", "first_step", "Step=0"),
        Binding("$", "last_step", "Step=-1"),
        Binding("j,down", "scroll_down", "↓"),
        Binding("k,up", "scroll_up", "↑"),
        Binding("L", "next_trajectory", "Traj++"),
        Binding("H", "previous_trajectory", "Traj--"),
        Binding("e", "open_in_jless", "Jless"),
        Binding("E", "open_in_jless_all", "Jless (all)"),
        Binding("q", "quit", "Quit"),
    ]
 
    def __init__(self, trajectory_files: list[Path]):
        css_path = os.environ.get(
            "MSWEA_INSPECTOR_STYLE_PATH", str(Path(__file__).parent.parent.parent / "config" / "inspector.tcss")
        )
        self.__class__.CSS = Path(css_path).read_text()
 
        super().__init__()
        self.trajectory_files = trajectory_files
        self._i_trajectory = 0
        self._i_step = 0
        self.messages = []
        self.steps = []
 
        if trajectory_files:
            self._load_current_trajectory()
 
    # --- Basics ---
 
    @property
    def i_step(self) -> int:
        """Current step index."""
        return self._i_step
 
    @i_step.setter
    def i_step(self, value: int) -> None:
        """Set current step index, automatically clamping to valid bounds."""
        if value != self._i_step and self.n_steps > 0:
            self._i_step = max(0, min(value, self.n_steps - 1))
            self.query_one(VerticalScroll).scroll_to(y=0, animate=False)
            self.update_content()
 
    @property
    def n_steps(self) -> int:
        """Number of steps in current trajectory."""
        return len(self.steps)
 
    @property
    def i_trajectory(self) -> int:
        """Current trajectory index."""
        return self._i_trajectory
 
    @i_trajectory.setter
    def i_trajectory(self, value: int) -> None:
        """Set current trajectory index, automatically clamping to valid bounds."""
        if value != self._i_trajectory and self.n_trajectories > 0:
            self._i_trajectory = max(0, min(value, self.n_trajectories - 1))
            self._load_current_trajectory()
            self.query_one(VerticalScroll).scroll_to(y=0, animate=False)
            self.update_content()
 
    @property
    def n_trajectories(self) -> int:
        """Number of trajectory files."""
        return len(self.trajectory_files)
 
    def _load_current_trajectory(self) -> None:
        """Load the currently selected trajectory file."""
        if not self.trajectory_files:
            self.messages = []
            self.steps = []
            return
 
        trajectory_file = self.trajectory_files[self.i_trajectory]
        try:
            data = json.loads(trajectory_file.read_text())
 
            if isinstance(data, list):
                self.messages = data
            elif isinstance(data, dict) and "messages" in data:
                self.messages = data["messages"]
            else:
                raise ValueError("Unrecognized trajectory format")
 
            self.steps = _messages_to_steps(self.messages)
            self._i_step = 0
        except (json.JSONDecodeError, FileNotFoundError, ValueError) as e:
            self.messages = []
            self.steps = []
            self.notify(f"Error loading {trajectory_file.name}: {e}", severity="error")
 
    @property
    def current_trajectory_name(self) -> str:
        """Get the name of the current trajectory file."""
        if not self.trajectory_files:
            return "No trajectories"
        return self.trajectory_files[self.i_trajectory].name
 
    def compose(self) -> ComposeResult:
        yield Header()
        with Container(id="main"):
            with VerticalScroll():
                yield Vertical(id="content")
        yield Footer()
 
    def on_mount(self) -> None:
        self.update_content()
 
    def update_content(self) -> None:
        """Update the displayed content."""
        container = self.query_one("#content", Vertical)
        container.remove_children()
 
        if not self.steps:
            container.mount(Static("No trajectory loaded or empty trajectory"))
            self.title = "Trajectory Inspector - No Data"
            return
 
        for message in self.steps[self.i_step]:
            content_str = get_content_string(message)
            message_container = Vertical(classes="message-container")
            container.mount(message_container)
            role = message.get("role") or message.get("type") or "unknown"
            message_container.mount(Static(role.upper(), classes="message-header"))
            message_container.mount(Static(Text(content_str, no_wrap=False), classes="message-content"))
 
        self.title = (
            f"Trajectory {self.i_trajectory + 1}/{self.n_trajectories} - "
            f"{self.current_trajectory_name} - "
            f"Step {self.i_step + 1}/{self.n_steps}"
        )
 
    # --- Navigation actions ---
 
    def action_next_step(self) -> None:
        self.i_step += 1
 
    def action_previous_step(self) -> None:
        self.i_step -= 1
 
    def action_first_step(self) -> None:
        self.i_step = 0
 
    def action_last_step(self) -> None:
        self.i_step = self.n_steps - 1
 
    def action_next_trajectory(self) -> None:
        self.i_trajectory += 1
 
    def action_previous_trajectory(self) -> None:
        self.i_trajectory -= 1
 
    def action_scroll_down(self) -> None:
        vs = self.query_one(VerticalScroll)
        vs.scroll_to(y=vs.scroll_target_y + 15)
 
    def action_scroll_up(self) -> None:
        vs = self.query_one(VerticalScroll)
        vs.scroll_to(y=vs.scroll_target_y - 15)
 
    def _open_in_jless(self, path: Path) -> None:
        """Open file in jless."""
        with self.suspend():
            try:
                subprocess.run(["jless", path])
            except FileNotFoundError:
                self.notify("jless not found. Install with: `brew install jless`", severity="error")
 
    def action_open_in_jless(self) -> None:
        """Open the current step's messages in jless."""
        if not self.steps:
            self.notify("No messages to display", severity="warning")
            return
        with tempfile.NamedTemporaryFile(mode="w", suffix=".json", delete=False) as f:
            json.dump(self.steps[self.i_step], f, indent=2)
            temp_path = Path(f.name)
        self._open_in_jless(temp_path)
        temp_path.unlink()
 
    def action_open_in_jless_all(self) -> None:
        """Open the entire trajectory in jless."""
        if not self.trajectory_files:
            self.notify("No trajectory to display", severity="warning")
            return
        self._open_in_jless(self.trajectory_files[self.i_trajectory])
 
 
@app.command(help=__doc__)
def main(
    path: str = typer.Argument(".", help="Directory to search for trajectory files or specific trajectory file"),
) -> None:
    path_obj = Path(path)
 
    if path_obj.is_file():
        trajectory_files = [path_obj]
    elif path_obj.is_dir():
        trajectory_files = sorted(path_obj.rglob("*.traj.json"))
        if not trajectory_files:
            raise typer.BadParameter(f"No trajectory files found in '{path}'")
    else:
        raise typer.BadParameter(f"Error: Path '{path}' does not exist")
 
    inspector = TrajectoryInspector(trajectory_files)
    inspector.run()
 
 
if __name__ == "__main__":
    app()
 

290 lines

1	`#!/usr/bin/env python3`
2	`"""`
3	`Simple trajectory inspector for browsing agent conversation trajectories.`
4
5	`More information about the usage: [bold green] https://mini-swe-agent.com/latest/usage/inspector/ [/bold green].`
6	`"""`
7
8	`import json`
9	`import os`
10	`import subprocess`
11	`import tempfile`
12	`from pathlib import Path`
13
14	`import typer`
15	`from rich.text import Text`
16	`from textual.app import App, ComposeResult`
17	`from textual.binding import Binding`
18	`from textual.command import DiscoveryHit, Hit, Hits, Provider`
19	`from textual.containers import Container, Vertical, VerticalScroll`
20	`from textual.widgets import Footer, Header, Static`
21
22	`from minisweagent.models.utils.content_string import get_content_string`
23
24
25	`def _messages_to_steps(messages: list[dict]) -> list[list[dict]]:`
26	`"""Group messages into "pages" as shown by the UI."""`
27	`steps = []`
28	`current_step = []`
29	`for message in messages:`
30	`# Start new step with new tool uses`
31	`if message.get("extra", {}).get("actions") or message.get("role") == "assistant":`
32	`steps.append(current_step)`
33	`current_step = [message]`
34	`else:`
35	`current_step.append(message)`
36	`if current_step:`
37	`steps.append(current_step)`
38	`return steps`
39
40
41	`app = typer.Typer(rich_markup_mode="rich", add_completion=False)`
42
43
44	`class BindingCommandProvider(Provider):`
45	`"""Provide bindings as commands in the palette."""`
46
47	`COMMAND_DESCRIPTIONS = {`
48	`"next_step": "Next step in the current trajectory",`
49	`"previous_step": "Previous step in the current trajectory",`
50	`"first_step": "First step in the current trajectory",`
51	`"last_step": "Last step in the current trajectory",`
52	`"scroll_down": "Scroll down",`
53	`"scroll_up": "Scroll up",`
54	`"next_trajectory": "Next trajectory",`
55	`"previous_trajectory": "Previous trajectory",`
56	`"open_in_jless": "Open the current step in jless",`
57	`"open_in_jless_all": "Open the entire trajectory in jless",`
58	`"quit": "Quit the inspector",`
59	`}`
60
61	`async def discover(self) -> Hits:`
62	`app = self.app`
63	`for binding in app.BINDINGS:`
64	`desc = self.COMMAND_DESCRIPTIONS.get(binding.action, binding.description)`
65	`yield DiscoveryHit(desc, lambda b=binding: app.run_action(b.action))`
66
67	`async def search(self, query: str) -> Hits:`
68	`matcher = self.matcher(query)`
69	`app = self.app`
70	`for binding in app.BINDINGS:`
71	`desc = self.COMMAND_DESCRIPTIONS.get(binding.action, binding.description)`
72	`score = matcher.match(desc)`
73	`if score > 0:`
74	`yield Hit(score, matcher.highlight(desc), lambda b=binding: app.run_action(b.action))`
75
76
77	`class TrajectoryInspector(App):`
78	`COMMANDS = {BindingCommandProvider}`
79	`BINDINGS = [`
80	`Binding("right,l", "next_step", "Step++"),`
81	`Binding("left,h", "previous_step", "Step--"),`
82	`Binding("0", "first_step", "Step=0"),`
83	`Binding("$", "last_step", "Step=-1"),`
84	`Binding("j,down", "scroll_down", "↓"),`
85	`Binding("k,up", "scroll_up", "↑"),`
86	`Binding("L", "next_trajectory", "Traj++"),`
87	`Binding("H", "previous_trajectory", "Traj--"),`
88	`Binding("e", "open_in_jless", "Jless"),`
89	`Binding("E", "open_in_jless_all", "Jless (all)"),`
90	`Binding("q", "quit", "Quit"),`
91	`]`
92
93	`def __init__(self, trajectory_files: list[Path]):`
94	`css_path = os.environ.get(`
95	`"MSWEA_INSPECTOR_STYLE_PATH", str(Path(__file__).parent.parent.parent / "config" / "inspector.tcss")`
96	`)`
97	`self.__class__.CSS = Path(css_path).read_text()`
98
99	`super().__init__()`
100	`self.trajectory_files = trajectory_files`
101	`self._i_trajectory = 0`
102	`self._i_step = 0`
103	`self.messages = []`
104	`self.steps = []`
105
106	`if trajectory_files:`
107	`self._load_current_trajectory()`
108
109	`# --- Basics ---`
110
111	`@property`
112	`def i_step(self) -> int:`
113	`"""Current step index."""`
114	`return self._i_step`
115
116	`@i_step.setter`
117	`def i_step(self, value: int) -> None:`
118	`"""Set current step index, automatically clamping to valid bounds."""`
119	`if value != self._i_step and self.n_steps > 0:`
120	`self._i_step = max(0, min(value, self.n_steps - 1))`
121	`self.query_one(VerticalScroll).scroll_to(y=0, animate=False)`
122	`self.update_content()`
123
124	`@property`
125	`def n_steps(self) -> int:`
126	`"""Number of steps in current trajectory."""`
127	`return len(self.steps)`
128
129	`@property`
130	`def i_trajectory(self) -> int:`
131	`"""Current trajectory index."""`
132	`return self._i_trajectory`
133
134	`@i_trajectory.setter`
135	`def i_trajectory(self, value: int) -> None:`
136	`"""Set current trajectory index, automatically clamping to valid bounds."""`
137	`if value != self._i_trajectory and self.n_trajectories > 0:`
138	`self._i_trajectory = max(0, min(value, self.n_trajectories - 1))`
139	`self._load_current_trajectory()`
140	`self.query_one(VerticalScroll).scroll_to(y=0, animate=False)`
141	`self.update_content()`
142
143	`@property`
144	`def n_trajectories(self) -> int:`
145	`"""Number of trajectory files."""`
146	`return len(self.trajectory_files)`
147
148	`def _load_current_trajectory(self) -> None:`
149	`"""Load the currently selected trajectory file."""`
150	`if not self.trajectory_files:`
151	`self.messages = []`
152	`self.steps = []`
153	`return`
154
155	`trajectory_file = self.trajectory_files[self.i_trajectory]`
156	`try:`
157	`data = json.loads(trajectory_file.read_text())`
158
159	`if isinstance(data, list):`
160	`self.messages = data`
161	`elif isinstance(data, dict) and "messages" in data:`
162	`self.messages = data["messages"]`
163	`else:`
164	`raise ValueError("Unrecognized trajectory format")`
165
166	`self.steps = _messages_to_steps(self.messages)`
167	`self._i_step = 0`
168	`except (json.JSONDecodeError, FileNotFoundError, ValueError) as e:`
169	`self.messages = []`
170	`self.steps = []`
171	`self.notify(f"Error loading {trajectory_file.name}: {e}", severity="error")`
172
173	`@property`
174	`def current_trajectory_name(self) -> str:`
175	`"""Get the name of the current trajectory file."""`
176	`if not self.trajectory_files:`
177	`return "No trajectories"`
178	`return self.trajectory_files[self.i_trajectory].name`
179
180	`def compose(self) -> ComposeResult:`
181	`yield Header()`
182	`with Container(id="main"):`
183	`with VerticalScroll():`
184	`yield Vertical(id="content")`
185	`yield Footer()`
186
187	`def on_mount(self) -> None:`
188	`self.update_content()`
189
190	`def update_content(self) -> None:`
191	`"""Update the displayed content."""`
192	`container = self.query_one("#content", Vertical)`
193	`container.remove_children()`
194
195	`if not self.steps:`
196	`container.mount(Static("No trajectory loaded or empty trajectory"))`
197	`self.title = "Trajectory Inspector - No Data"`
198	`return`
199
200	`for message in self.steps[self.i_step]:`
201	`content_str = get_content_string(message)`
202	`message_container = Vertical(classes="message-container")`
203	`container.mount(message_container)`
204	`role = message.get("role") or message.get("type") or "unknown"`
205	`message_container.mount(Static(role.upper(), classes="message-header"))`
206	`message_container.mount(Static(Text(content_str, no_wrap=False), classes="message-content"))`
207
208	`self.title = (`
209	`f"Trajectory {self.i_trajectory + 1}/{self.n_trajectories} - "`
210	`f"{self.current_trajectory_name} - "`
211	`f"Step {self.i_step + 1}/{self.n_steps}"`
212	`)`
213
214	`# --- Navigation actions ---`
215
216	`def action_next_step(self) -> None:`
217	`self.i_step += 1`
218
219	`def action_previous_step(self) -> None:`
220	`self.i_step -= 1`
221
222	`def action_first_step(self) -> None:`
223	`self.i_step = 0`
224
225	`def action_last_step(self) -> None:`
226	`self.i_step = self.n_steps - 1`
227
228	`def action_next_trajectory(self) -> None:`
229	`self.i_trajectory += 1`
230
231	`def action_previous_trajectory(self) -> None:`
232	`self.i_trajectory -= 1`
233
234	`def action_scroll_down(self) -> None:`
235	`vs = self.query_one(VerticalScroll)`
236	`vs.scroll_to(y=vs.scroll_target_y + 15)`
237
238	`def action_scroll_up(self) -> None:`
239	`vs = self.query_one(VerticalScroll)`
240	`vs.scroll_to(y=vs.scroll_target_y - 15)`
241
242	`def _open_in_jless(self, path: Path) -> None:`
243	`"""Open file in jless."""`
244	`with self.suspend():`
245	`try:`
246	`subprocess.run(["jless", path])`
247	`except FileNotFoundError:`
248	self.notify("jless not found. Install with: `brew install jless`", severity="error")
249
250	`def action_open_in_jless(self) -> None:`
251	`"""Open the current step's messages in jless."""`
252	`if not self.steps:`
253	`self.notify("No messages to display", severity="warning")`
254	`return`
255	`with tempfile.NamedTemporaryFile(mode="w", suffix=".json", delete=False) as f:`
256	`json.dump(self.steps[self.i_step], f, indent=2)`
257	`temp_path = Path(f.name)`
258	`self._open_in_jless(temp_path)`
259	`temp_path.unlink()`
260
261	`def action_open_in_jless_all(self) -> None:`
262	`"""Open the entire trajectory in jless."""`
263	`if not self.trajectory_files:`
264	`self.notify("No trajectory to display", severity="warning")`
265	`return`
266	`self._open_in_jless(self.trajectory_files[self.i_trajectory])`
267
268
269	`@app.command(help=__doc__)`
270	`def main(`
271	`path: str = typer.Argument(".", help="Directory to search for trajectory files or specific trajectory file"),`
272	`) -> None:`
273	`path_obj = Path(path)`
274
275	`if path_obj.is_file():`
276	`trajectory_files = [path_obj]`
277	`elif path_obj.is_dir():`
278	`trajectory_files = sorted(path_obj.rglob("*.traj.json"))`
279	`if not trajectory_files:`
280	`raise typer.BadParameter(f"No trajectory files found in '{path}'")`
281	`else:`
282	`raise typer.BadParameter(f"Error: Path '{path}' does not exist")`
283
284	`inspector = TrajectoryInspector(trajectory_files)`
285	`inspector.run()`
286
287
288	`if __name__ == "__main__":`
289	`app()`
290