@samitouri / QOSami_Agents_Zero-2 / commits / f17198e1

fix: tighten tool guidance and editor workflows

Alessandro committed May 11, 2026 at 05:13 UTC f17198e126bcd5a562bfabcc27e3066f2ca11aaa

19 files changed +694 -45

helpers/document_query.py

+34 -8

@@ -29,6 +29,7 @@ from langchain.text_splitter import RecursiveCharacterTextSplitter

30 DEFAULT_SEARCH_THRESHOLD = 0.5

31 MAX_REMOTE_DOCUMENT_BYTES = 50 * 1024 * 1024

32 +SMALL_DOCUMENT_QA_FALLBACK_CHARS = 12_000

35 class DocumentQueryStore:

@@ -369,7 +370,7 @@ class DocumentQueryHelper:

370 await self.agent.handle_intervention()

371

372 # index documents

372 - await asyncio.gather(

373 + document_contents = await asyncio.gather(

374 *[self.document_get_content(uri, True) for uri in document_uris]

375 )

376 await self.agent.handle_intervention()

@@ -409,19 +410,27 @@ class DocumentQueryHelper:

410 selected_chunks[chunk.metadata["id"]] = chunk

411

412 if not selected_chunks:

412 - self.progress_callback("No relevant content found in the documents")

413 - content = f"!!! No content found for documents: {json.dumps(document_uris)} matching queries: {json.dumps(questions)}"

414 - return False, content

413 + content = self._small_document_fallback_content(

414 + document_uris, document_contents

415 + )

416 + if not content:

417 + self.progress_callback("No relevant content found in the documents")

418 + content = f"!!! No content found for documents: {json.dumps(document_uris)} matching queries: {json.dumps(questions)}"

419 + return False, content

420 + self.progress_callback(

421 + "No matching chunks found; using complete small-document content"

422 + )

423 + else:

424 + content = "\n\n----\n\n".join(

425 + [chunk.page_content for chunk in selected_chunks.values()]

426 + )

427

428 self.progress_callback(

417 - f"Processing {len(questions)} questions in context of {len(selected_chunks)} chunks"

429 + f"Processing {len(questions)} questions in document context"

430 )

431 await self.agent.handle_intervention()

432

433 questions_str = "\n".join([f" * {question}" for question in questions])

422 - content = "\n\n----\n\n".join(

423 - [chunk.page_content for chunk in selected_chunks.values()]

424 - )

434

435 qa_system_message = self.agent.parse_prompt(

436 "fw.document_query.system_prompt.md"

@@ -440,6 +449,23 @@ class DocumentQueryHelper:

449

450 return True, str(ai_response)

451

452 + @staticmethod

453 + def _small_document_fallback_content(

454 + document_uris: Sequence[str], document_contents: Sequence[str]

455 + ) -> str:

456 + total_chars = 0

457 + sections = []

458 +

459 + for uri, content in zip(document_uris, document_contents):

460 + if not isinstance(content, str) or not content.strip():

461 + continue

462 + total_chars += len(content)

463 + if total_chars > SMALL_DOCUMENT_QA_FALLBACK_CHARS:

464 + return ""

465 + sections.append(f"## {uri}\n\n{content.strip()}")

466 +

467 + return "\n\n----\n\n".join(sections)

468 +

469 async def document_get_content(

470 self, document_uri: str, add_to_db: bool = False

471 ) -> str:

helpers/task_scheduler.py

+5 -1

@@ -820,9 +820,13 @@ class TaskScheduler:

820 save_tmp_chat(context)

821 return context

822 else:

823 - PrintStyle.warning(

823 + message = (

824 f"Scheduler Task {task.name} loaded from task {task.uuid} but context not found"

825 )

826 + if task.is_dedicated():

827 + PrintStyle.info(f"{message}; creating dedicated context")

828 + else:

829 + PrintStyle.warning(message)

830 return await self.__new_context(task)

831

832 async def _persist_chat(self, task: Union[ScheduledTask, AdHocTask, PlannedTask], context: AgentContext):

plugins/_a0_connector/prompts/agent.system.tool.text_editor_remote.md

+2 -1

@@ -14,11 +14,12 @@ report that to the user instead of falling back to server-side file tools.

14 - `path`: file path on the CLI host filesystem

15 - `read`: optional `line_from`, `line_to`

16 - `write`: requires `content`

17 -- `patch`: requires either `patch_text` or `edits`

17 +- `patch`: requires one of `old_text` + `new_text`, `patch_text`, or `edits`

19 ## Notes

20 - Prefer `read` before line-number edits.

21 - If the user says patch, change without rewriting, or don't rewrite, use `action: "patch"` instead of `write`.

22 +- For simple "change X to Y" requests, prefer exact replace with `old_text` and `new_text`; `old_text` must match one exact current span.

23 - Prefer `patch_text` for context-anchored changes and `edits` only for fresh, surgical line ranges.

24 - If freshness checks reject a line patch, reread the file and retry with updated ranges.

25 - Relative paths are relative to the CLI host filesystem. Do not rewrite them to

plugins/_a0_connector/skills/host-file-editing/SKILL.md

+3 -1

@@ -20,12 +20,14 @@ If the task belongs inside Agent Zero's own runtime, use the normal server-side

21 - Start with `read` when inspecting a file or preparing line-based edits.

22 - Use `write` only when replacing or creating the whole file is truly the right operation.

23 -- Prefer `patch` with `patch_text` for context-anchored edits, especially after inserts/deletes or when line numbers may have shifted.

23 +- Prefer `patch` with `old_text` and `new_text` for simple exact replacements.

24 +- Use `patch_text` for context-anchored edits, especially after inserts/deletes or when line numbers may have shifted.

25 - Use `patch` with `edits` only for small line-range edits based on the latest remote read.

26 - If freshness-aware line patching rejects an edit as stale, reread the file and retry with updated ranges.

28 ## Patch Text Rules

30 +- Exact replace requires `old_text` to match one exact current span; use a longer span if it matches multiple places.

31 - `patch_text` supports update hunks for one file.

32 - Use one `@@ existing line` anchor, then `+new line` entries for insertion.

33 - For replacement, use `@@ before target` followed by `-old` and `+new`, or use `@@ old target` followed by the same replacement pair.

plugins/_a0_connector/tools/text_editor_remote.py

+17 -2

@@ -23,7 +23,10 @@ from plugins._a0_connector.helpers.ws_runtime import (

23 select_remote_file_target_sid,

24 store_pending_file_op,

25 )

26 -from plugins._text_editor.helpers.patch_request import parse_patch_request

26 +from plugins._text_editor.helpers.patch_request import (

27 + exact_replace_to_patch_text,

28 + parse_patch_request,

29 +)

32 FILE_OP_TIMEOUT = 30.0

@@ -83,7 +86,12 @@ class TextEditorRemote(Tool):

86 patch_request, err = parse_patch_request(

87 self.args.get("edits"),

88 self.args.get("patch_text"),

86 - both_error="provide either edits or patch_text for patch, not both",

89 + self.args.get("old_text"),

90 + self.args.get("new_text"),

91 + both_error=(

92 + "provide exactly one patch form: edits, patch_text, "

93 + "or old_text/new_text"

94 + ),

95 )

96 if err:

97 return Response(

@@ -94,6 +102,13 @@ class TextEditorRemote(Tool):

102 result = await self._execute_context_patch(

103 path, patch_request.patch_text

104 )

105 + elif patch_request and patch_request.mode == "replace":

106 + result = await self._execute_context_patch(

107 + path,

108 + exact_replace_to_patch_text(

109 + path, patch_request.old_text, patch_request.new_text

110 + ),

111 + )

112 else:

113 result = await self._execute_patch(

114 path,

plugins/_promptinclude/prompts/agent.system.promptinclude.md

+2 -1

@@ -3,8 +3,9 @@

3 create/edit/delete persist across conversations

4 preference changes, instruction files, project notes, and prompt includes > persist via text_editor before responding

5 explicit memory requests like "remember this", "what did I ask you to remember", or "forget this" > use memory tools, not promptinclude files, unless the user asks to edit a file

6 +explicit durable behavior, personality, style, greeting, or exact-response rule requests > use behaviour_adjustment, not promptinclude files, unless the user asks to edit a file

7 never just acknowledge durable project/instruction changes verbally; persist them to file when the user asks for a file/instruction/preference change

7 -use promptinclude files for persistent project context and behavioral instructions

8 +use promptinclude files for persistent project context, reference instructions, and user-authored prompt include files

9 recursive search alphabetical by full path

10 {{if includes}}

11 ### includes

plugins/_text_editor/helpers/file_ops.py

+54

@@ -218,6 +218,13 @@ class ContextPatchFileResult(TypedDict):

218 line_to: int

219

220

221 +class ExactReplaceFileResult(TypedDict):

222 + total_lines: int

223 + replacement_count: int

224 + line_from: int

225 + line_to: int

226 +

227 +

228 def validate_edits(edits: list | None) -> tuple[list[dict], str]:

229 """

230 Normalise and validate an edits array.

@@ -391,6 +398,53 @@ def apply_context_patch_file(path: str, patch_text: str) -> ContextPatchFileResu

398 )

399

400

401 +def apply_exact_replace_file(

402 + path: str, old_text: str, new_text: str

403 +) -> ExactReplaceFileResult:

404 + """Replace exactly one text span in an existing text file."""

405 + path = os.path.expanduser(path)

406 + if not os.path.isfile(path):

407 + raise FileNotFoundError("file not found")

408 + if not old_text:

409 + raise ValueError("old_text is required for exact replace")

410 +

411 + with open(path, "r", encoding="utf-8", errors="replace") as src:

412 + content = src.read()

413 +

414 + match_count = content.count(old_text)

415 + if match_count == 0:

416 + raise ValueError("old_text not found")

417 + if match_count > 1:

418 + raise ValueError(

419 + f"old_text matched {match_count} times; provide a longer exact span"

420 + )

421 + if old_text == new_text:

422 + raise ValueError("old_text and new_text are identical")

423 +

424 + start = content.index(old_text)

425 + line_from = content[:start].count("\n") + 1

426 + line_to = line_from + max(_count_content_lines(old_text) - 1, 0)

427 + new_content = content.replace(old_text, new_text, 1)

428 +

429 + dir_name = os.path.dirname(path) or "."

430 + fd, tmp_path = tempfile.mkstemp(dir=dir_name, suffix=".tmp")

431 + try:

432 + with os.fdopen(fd, "w", encoding="utf-8") as dst:

433 + dst.write(new_content)

434 + shutil.move(tmp_path, path)

435 + except Exception:

436 + if os.path.exists(tmp_path):

437 + os.unlink(tmp_path)

438 + raise

439 +

440 + return ExactReplaceFileResult(

441 + total_lines=_count_content_lines(new_content),

442 + replacement_count=1,

443 + line_from=line_from,

444 + line_to=line_to,

445 + )

446 +

447 +

448 # ------------------------------------------------------------------

449 # Internal

450 # ------------------------------------------------------------------

plugins/_text_editor/helpers/patch_request.py

+34 -5

@@ -4,7 +4,7 @@ from dataclasses import dataclass

4 from typing import Any, Literal

7 -PatchMode = Literal["edits", "patch_text"]

7 +PatchMode = Literal["edits", "patch_text", "replace"]

10 @dataclass(frozen=True)

@@ -12,20 +12,37 @@ class PatchRequest:

12 mode: PatchMode

13 edits: Any = None

14 patch_text: str = ""

15 + old_text: str = ""

16 + new_text: str = ""

19 def parse_patch_request(

20 edits: Any,

21 patch_text: Any,

22 + old_text: Any = None,

23 + new_text: Any = None,

24 *,

21 - both_error: str = "provide either edits or patch_text, not both",

22 - missing_error: str = "edits or patch_text is required for patch",

25 + both_error: str = "provide exactly one patch form: edits, patch_text, or old_text/new_text",

26 + missing_error: str = "edits, patch_text, or old_text/new_text is required for patch",

27 ) -> tuple[PatchRequest | None, str]:

28 """Validate the mutually-exclusive patch request shape."""

25 - if edits is not None and patch_text is not None:

29 + has_edits = edits is not None

30 + has_patch_text = patch_text is not None

31 + has_replace = old_text is not None or new_text is not None

32 + if sum([has_edits, has_patch_text, has_replace]) > 1:

33 return None, both_error

28 - if patch_text is not None:

35 + if has_replace:

36 + old = str(old_text or "")

37 + if not old:

38 + return None, "old_text is required for exact replace"

39 + return PatchRequest(

40 + mode="replace",

41 + old_text=old,

42 + new_text=str(new_text or ""),

43 + ), ""

44 +

45 + if has_patch_text:

46 text = str(patch_text)

47 if not text.strip():

48 return None, "patch_text must not be empty"

@@ -35,3 +52,15 @@ def parse_patch_request(

52 return None, missing_error

54 return PatchRequest(mode="edits", edits=edits), ""

55 +

56 +

57 +def exact_replace_to_patch_text(path: str, old_text: str, new_text: str) -> str:

58 + """Represent one exact text replacement as a context patch."""

59 + lines = [

60 + "*** Begin Patch",

61 + f"*** Update File: {path}",

62 + ]

63 + lines.extend(f"-{line}" for line in old_text.split("\n"))

64 + lines.extend(f"+{line}" for line in new_text.split("\n"))

65 + lines.append("*** End Patch")

66 + return "\n".join(lines)

plugins/_text_editor/prompts/agent.system.tool.text_editor.md

+6 -4

@@ -44,9 +44,10 @@ usage:

44 ~~~

46 #### patch

47 -edit existing file. prefer patch_text; use edits only right after read for tiny line edits

47 +edit existing file. prefer exact replace for simple "change X to Y"; use patch_text for context changes; use edits only right after read for tiny line edits

48 if the user says patch, change without rewriting, or don't rewrite, use action patch instead of write

49 -args path plus exactly one of: patch_text string OR edits [{from to content}]

49 +args path plus exactly one of: old_text+new_text OR patch_text string OR edits [{from to content}]

50 +exact replace: `old_text` must be the exact current text span and must match once; `new_text` is the replacement

51 patch_text uses current file content, no prior read required

52 patch_text update-only forms:

53 - insert after anchor: @@ exact existing line then +new lines

@@ -61,13 +62,14 @@ ensure valid syntax in content (all braces brackets tags closed)

62 usage:

63 ~~~json

64 {

64 - "thoughts": ["A context patch is safer than line-number surgery here."],

65 + "thoughts": ["I can replace one exact current string without rewriting the whole file."],

66 "headline": "Patching file",

67 "tool_name": "text_editor",

68 "tool_args": {

69 "action": "patch",

70 "path": "/path/file.py",

70 - "patch_text": "*** Begin Patch\n*** Update File: file.py\n@@ def run():\n+ print('ready')\n*** End Patch"

71 + "old_text": "status = 'draft'",

72 + "new_text": "status = 'ready'"

73 }

74 }

75 ~~~

plugins/_text_editor/tools/text_editor.py

+84 -1

@@ -8,6 +8,7 @@ from plugins._text_editor.helpers.file_ops import (

8 validate_edits,

9 apply_patch,

10 apply_context_patch_file,

11 + apply_exact_replace_file,

12 file_info,

13 )

14 from plugins._text_editor.helpers.patch_request import parse_patch_request

@@ -152,13 +153,15 @@ class TextEditor(Tool):

153 # PATCH

154 # ------------------------------------------------------------------

155 async def _patch(

155 - self, path: str = "", edits=None, patch_text=None, **kwargs

156 + self, path: str = "", edits=None, patch_text=None, old_text=None, new_text=None, **kwargs

157 ) -> Response:

158 if not path:

159 return self._error("patch", path, "path is required")

160 patch_request, err = parse_patch_request(

161 edits,

162 patch_text,

163 + old_text,

164 + new_text,

165 missing_error="",

166 )

167 if err:

@@ -174,6 +177,10 @@ class TextEditor(Tool):

177 return await self._patch_context(

178 path, expanded, patch_request.patch_text

179 )

180 + if patch_request and patch_request.mode == "replace":

181 + return await self._patch_replace(

182 + path, expanded, patch_request.old_text, patch_request.new_text

183 + )

184

185 return await self._patch_edits(

186 path,

@@ -241,6 +248,61 @@ class TextEditor(Tool):

248 )

249 return Response(message=msg, break_loop=False)

250

251 + async def _patch_replace(

252 + self, path: str, expanded: str, old_text: str, new_text: str

253 + ) -> Response:

254 + # Extension point

255 + ext_data = {

256 + "path": expanded,

257 + "old_text": old_text,

258 + "new_text": new_text,

259 + "edits": [],

260 + "mode": "replace",

261 + }

262 + await call_extensions_async(

263 + "text_editor_patch_before", agent=self.agent, data=ext_data

264 + )

265 +

266 + try:

267 + result = await runtime.call_development_function(

268 + apply_exact_replace_file,

269 + ext_data["path"],

270 + ext_data["old_text"],

271 + ext_data["new_text"],

272 + )

273 + except Exception as exc:

274 + return self._error("patch", path, str(exc))

275 +

276 + total_lines = result["total_lines"]

277 +

278 + await call_extensions_async(

279 + "text_editor_patch_after", agent=self.agent,

280 + data={

281 + "path": ext_data["path"],

282 + "total_lines": total_lines,

283 + "replacement_count": result["replacement_count"],

284 + "mode": "replace",

285 + },

286 + )

287 +

288 + post_info = await runtime.call_development_function(

289 + file_info, ext_data["path"]

290 + )

291 + mark_file_state_stale(self.agent, post_info, key=_MTIME_KEY)

292 +

293 + patch_content = await _read_exact_replace_region(

294 + ext_data["path"], result, _get_config(self.agent)

295 + )

296 +

297 + msg = self.agent.read_prompt(

298 + "fw.text_editor.patch_ok.md",

299 + path=ext_data["path"],

300 + edit_count=str(result["replacement_count"]),

301 + total_lines=str(total_lines),

302 + content=patch_content,

303 + )

304 + return Response(message=msg, break_loop=False)

305 +

306 async def _patch_context(

307 self, path: str, expanded: str, patch_text

308 ) -> Response:

@@ -364,6 +426,27 @@ async def _read_context_patch_region(

426 return read_result["content"]

427

428

429 +async def _read_exact_replace_region(

430 + path: str, result: dict, cfg: dict

431 +) -> str:

432 + total_lines = int(result["total_lines"])

433 + if total_lines <= 0:

434 + return ""

435 +

436 + line_from = min(max(int(result["line_from"]), 1), total_lines)

437 + line_to = min(max(int(result["line_to"]), line_from) + 3, total_lines)

438 +

439 + read_result = await runtime.call_development_function(

440 + read_file,

441 + path,

442 + line_from=max(line_from - 1, 1),

443 + line_to=line_to,

444 + max_line_tokens=cfg["max_line_tokens"],

445 + max_total_read_tokens=cfg["max_total_read_tokens"],

446 + )

447 + return read_result["content"]

448 +

449 +

450 def _freshness_error_message(agent, info: FileInfo, code: str) -> str:

451 prompt = (

452 "fw.text_editor.patch_stale_read.md"

prompts/agent.system.tool.behaviour.md

@@ -2,3 +2,6 @@

2 exact tool name uses british spelling: `behaviour_adjustment`

3 update persistent behavioral rules

4 arg: `adjustments` text describing what to add or remove

5 +use for durable behavior, personality, style, response-format, greeting, and exact-response rules

6 +when the user asks for an exact word, phrase, token, or casing, preserve it verbatim in `adjustments`

7 +do not edit promptinclude files for behavioral rules unless the user explicitly asks for a file change

prompts/agent.system.tool.call_sub.md

@@ -4,6 +4,8 @@ args: `message`, optional `profile`, `reset`

4 - `profile`: optional prompt profile name for the subordinate; leave empty for the default profile

5 - `reset`: use json boolean `true` for the first message or when changing profile; use `false` to continue

6 - `message`: define role, goal, and the concrete task

7 +after the subordinate returns, answer from its result directly when it satisfies the user request

8 +do not repeat the same solving work or call extra tools after a sufficient subordinate result

9 example:

10 ~~~json

11 {

prompts/behaviour.merge.sys.md

+3 -1

@@ -2,7 +2,9 @@

2 1. The assistant receives a markdown ruleset of AGENT's behaviour and text of adjustments to be implemented

3 2. Assistant merges the ruleset with the instructions into a new markdown ruleset

4 3. Assistant keeps the ruleset short, removing any duplicates or redundant information

5 +4. Assistant preserves exact words, phrases, tokens, capitalization, punctuation, and quoted/code-spanned text from the adjustments verbatim

6 +5. If an adjustment says to respond exactly with a phrase, the resulting rule must include that full exact phrase unchanged

8 # Format

9 - The response format is a markdown format of instructions for AI AGENT explaining how the AGENT is supposed to behave

8 -- No level 1 headings (#), only level 2 headings (##) and bullet points (*)

\ No newline at end of file

10 +- No level 1 headings (#), only level 2 headings (##) and bullet points (*)

tests/test_document_query_fallback.py new

+72

@@ -0,0 +1,72 @@

1 +from __future__ import annotations

2 +

3 +import asyncio

4 +import sys

5 +from pathlib import Path

6 +

7 +PROJECT_ROOT = Path(__file__).resolve().parents[1]

8 +if str(PROJECT_ROOT) not in sys.path:

9 + sys.path.insert(0, str(PROJECT_ROOT))

10 +

11 +from helpers.document_query import DocumentQueryHelper

12 +

13 +

14 +class FakeStore:

15 + @staticmethod

16 + def normalize_uri(uri: str) -> str:

17 + return uri

18 +

19 + async def search_documents(self, **_kwargs):

20 + return []

21 +

22 +

23 +class FakeAgent:

24 + def __init__(self):

25 + self.chat_messages = None

26 +

27 + async def handle_intervention(self):

28 + return None

29 +

30 + def parse_prompt(self, name: str) -> str:

31 + return name

32 +

33 + async def call_utility_model(self, **_kwargs) -> str:

34 + return "codename"

35 +

36 + async def call_chat_model(self, messages, explicit_caching=False):

37 + self.chat_messages = messages

38 + return "The project codename is Atlas.", None

39 +

40 +

41 +def test_document_qa_uses_small_document_content_when_search_finds_no_chunks():

42 + agent = FakeAgent()

43 + progress = []

44 + helper = object.__new__(DocumentQueryHelper)

45 + helper.agent = agent

46 + helper.store = FakeStore()

47 + helper.progress_callback = progress.append

48 +

49 + async def document_get_content(uri, add_to_db=False):

50 + assert uri == "/tmp/project.md"

51 + assert add_to_db is True

52 + return "# Project\n\nCodename: Atlas\n"

53 +

54 + helper.document_get_content = document_get_content

55 +

56 + ok, content = asyncio.run(

57 + helper.document_qa(["/tmp/project.md"], ["What is the codename?"])

58 + )

59 +

60 + assert ok is True

61 + assert content == "The project codename is Atlas."

62 + assert "No matching chunks found" in "\n".join(progress)

63 + assert agent.chat_messages is not None

64 + assert "Codename: Atlas" in agent.chat_messages[1].content

65 +

66 +

67 +def test_small_document_fallback_refuses_large_content():

68 + content = DocumentQueryHelper._small_document_fallback_content(

69 + ["/tmp/large.md"], ["x" * 12_001]

70 + )

71 +

72 + assert content == ""

tests/test_model_search.py

+2 -2

@@ -22,9 +22,9 @@ def _handler():

22 def test_model_search_parses_openai_style_data():

23 handler = _handler()

25 - assert handler._parse({"data": [{"id": "gpt-4.1"}, {"id": "gpt-4.1-mini"}]}, "openai") == [

25 + assert handler._parse({"data": [{"id": "gpt-4.1"}, {"id": "gpt-4o-mini"}]}, "openai") == [

26 "gpt-4.1",

27 - "gpt-4.1-mini",

27 + "gpt-4o-mini",

28 ]

tests/test_task_scheduler_timezone.py

+95 -1

@@ -1,3 +1,4 @@

1 +import asyncio

2 from datetime import datetime, timezone

3 from pathlib import Path

4 import sys

@@ -8,7 +9,7 @@ if str(PROJECT_ROOT) not in sys.path:

9 sys.path.insert(0, str(PROJECT_ROOT))

11 from helpers import task_scheduler

11 -from helpers.task_scheduler import ScheduledTask, TaskSchedule

12 +from helpers.task_scheduler import AdHocTask, ScheduledTask, TaskSchedule

15 class FixedDateTime(datetime):

@@ -63,3 +64,96 @@ def test_scheduled_task_normalizes_legacy_local_timezone(monkeypatch):

65 assert task.schedule.timezone == "Europe/Rome"

66 assert task.get_next_run() == datetime(2026, 5, 10, 7, 30, tzinfo=timezone.utc)

67 +

68 +

69 +def test_scheduler_missing_dedicated_context_logs_info(monkeypatch):

70 + calls = []

71 +

72 + class FakePrintStyle:

73 + @staticmethod

74 + def info(message):

75 + calls.append(("info", message))

76 +

77 + @staticmethod

78 + def warning(message):

79 + calls.append(("warning", message))

80 +

81 + class FakeAgentContext:

82 + @staticmethod

83 + def get(_context_id):

84 + return None

85 +

86 + def __init__(self, _config, id, name):

87 + self.id = id

88 + self.name = name

89 +

90 + monkeypatch.setattr(task_scheduler, "PrintStyle", FakePrintStyle)

91 + monkeypatch.setattr(task_scheduler, "AgentContext", FakeAgentContext)

92 + monkeypatch.setattr(task_scheduler, "initialize_agent", lambda: object())

93 + monkeypatch.setattr(task_scheduler, "save_tmp_chat", lambda _context: None)

94 + monkeypatch.setattr(

95 + task_scheduler.projects, "activate_project", lambda *_args, **_kwargs: None

96 + )

97 +

98 + task = AdHocTask.create(

99 + name="dedicated",

100 + system_prompt="",

101 + prompt="run this",

102 + token="123",

103 + )

104 + scheduler = object.__new__(task_scheduler.TaskScheduler)

105 +

106 + context = asyncio.run(scheduler._get_chat_context(task))

107 +

108 + assert context.id == task.context_id

109 + assert len(calls) == 1

110 + level, message = calls[0]

111 + assert level == "info"

112 + assert "creating dedicated context" in message

113 +

114 +

115 +def test_scheduler_missing_shared_context_still_logs_warning(monkeypatch):

116 + calls = []

117 +

118 + class FakePrintStyle:

119 + @staticmethod

120 + def info(message):

121 + calls.append(("info", message))

122 +

123 + @staticmethod

124 + def warning(message):

125 + calls.append(("warning", message))

126 +

127 + class FakeAgentContext:

128 + @staticmethod

129 + def get(_context_id):

130 + return None

131 +

132 + def __init__(self, _config, id, name):

133 + self.id = id

134 + self.name = name

135 +

136 + monkeypatch.setattr(task_scheduler, "PrintStyle", FakePrintStyle)

137 + monkeypatch.setattr(task_scheduler, "AgentContext", FakeAgentContext)

138 + monkeypatch.setattr(task_scheduler, "initialize_agent", lambda: object())

139 + monkeypatch.setattr(task_scheduler, "save_tmp_chat", lambda _context: None)

140 + monkeypatch.setattr(

141 + task_scheduler.projects, "activate_project", lambda *_args, **_kwargs: None

142 + )

143 +

144 + task = AdHocTask.create(

145 + name="shared",

146 + system_prompt="",

147 + prompt="run this",

148 + token="123",

149 + context_id="shared-context",

150 + )

151 + scheduler = object.__new__(task_scheduler.TaskScheduler)

152 +

153 + context = asyncio.run(scheduler._get_chat_context(task))

154 +

155 + assert context.id == task.context_id

156 + assert len(calls) == 1

157 + level, message = calls[0]

158 + assert level == "warning"

159 + assert "context not found" in message

tests/test_text_editor_context_patch.py

+99 -4

@@ -14,8 +14,14 @@ if str(PROJECT_ROOT) not in sys.path:

14 sys.path.insert(0, str(PROJECT_ROOT))

16 from plugins._text_editor.helpers.context_patch import ContextPatchError

17 -from plugins._text_editor.helpers.file_ops import apply_context_patch_file

18 -from plugins._text_editor.helpers.patch_request import parse_patch_request

17 +from plugins._text_editor.helpers.file_ops import (

18 + apply_context_patch_file,

19 + apply_exact_replace_file,

20 +)

21 +from plugins._text_editor.helpers.patch_request import (

22 + exact_replace_to_patch_text,

23 + parse_patch_request,

24 +)

25 from plugins._text_editor.helpers.patch_state import (

26 LOCAL_FRESHNESS_KEY,

27 REMOTE_FRESHNESS_KEY,

@@ -100,6 +106,41 @@ def test_context_patch_replaces_matching_context(tmp_path: Path) -> None:

106 assert target.read_text(encoding="utf-8") == "alpha\nbeta\ndelta\n"

107

108

109 +def test_exact_replace_file_replaces_one_span(tmp_path: Path) -> None:

110 + target = tmp_path / "sample.txt"

111 + target.write_text("alpha\nstatus = draft\ngamma\n", encoding="utf-8")

112 +

113 + result = apply_exact_replace_file(

114 + str(target), "status = draft", "status = ready"

115 + )

116 +

117 + assert result["replacement_count"] == 1

118 + assert result["line_from"] == 2

119 + assert target.read_text(encoding="utf-8") == "alpha\nstatus = ready\ngamma\n"

120 +

121 +

122 +def test_exact_replace_file_rejects_ambiguous_match(tmp_path: Path) -> None:

123 + target = tmp_path / "sample.txt"

124 + target.write_text("alpha\nalpha\n", encoding="utf-8")

125 +

126 + with pytest.raises(ValueError, match="matched 2 times"):

127 + apply_exact_replace_file(str(target), "alpha", "beta")

128 +

129 + assert target.read_text(encoding="utf-8") == "alpha\nalpha\n"

130 +

131 +

132 +def test_exact_replace_to_patch_text_works_with_context_patch(tmp_path: Path) -> None:

133 + target = tmp_path / "sample.txt"

134 + target.write_text("alpha\nstatus = draft\ngamma\n", encoding="utf-8")

135 +

136 + patch_text = exact_replace_to_patch_text(

137 + "sample.txt", "status = draft", "status = ready"

138 + )

139 + apply_context_patch_file(str(target), patch_text)

140 +

141 + assert target.read_text(encoding="utf-8") == "alpha\nstatus = ready\ngamma\n"

142 +

143 +

144 def test_context_patch_replaces_when_anchor_is_target_line(

145 tmp_path: Path,

146 ) -> None:

@@ -211,7 +252,7 @@ def test_patch_request_rejects_edits_and_patch_text_together() -> None:

252 )

253

254 assert request is None

214 - assert err == "provide either edits or patch_text, not both"

255 + assert err == "provide exactly one patch form: edits, patch_text, or old_text/new_text"

256

257

258 def test_patch_request_rejects_empty_patch_text() -> None:

@@ -221,6 +262,21 @@ def test_patch_request_rejects_empty_patch_text() -> None:

262 assert err == "patch_text must not be empty"

263

264

265 +def test_patch_request_accepts_exact_replace() -> None:

266 + request, err = parse_patch_request(

267 + None,

268 + None,

269 + old_text="status = draft",

270 + new_text="status = ready",

271 + )

272 +

273 + assert err == ""

274 + assert request is not None

275 + assert request.mode == "replace"

276 + assert request.old_text == "status = draft"

277 + assert request.new_text == "status = ready"

278 +

279 +

280 def test_patch_state_records_and_checks_fresh_file_state() -> None:

281 agent = _FakeAgent()

282 file_data = {"realpath": "/tmp/sample.txt", "mtime": 1.0, "total_lines": 3}

@@ -435,6 +491,45 @@ def test_text_editor_patch_text_does_not_require_prior_read(

491 assert calls[1][1]["mode"] == "patch_text"

492

493

494 +def test_text_editor_exact_replace_does_not_require_prior_read(

495 + tmp_path: Path, monkeypatch: pytest.MonkeyPatch

496 +) -> None:

497 + module, calls = _load_text_editor_tool(monkeypatch)

498 + target = tmp_path / "sample.txt"

499 + target.write_text("line-1\nstatus = draft\nline-3\n", encoding="utf-8")

500 + agent = _FakeAgent()

501 + tool = module.TextEditor(agent, "text_editor", "patch", {}, "", None)

502 +

503 + response = asyncio.run(

504 + tool._patch(

505 + path=str(target),

506 + old_text="status = draft",

507 + new_text="status = ready",

508 + )

509 + )

510 +

511 + assert "patched 1 edits applied 3 lines now" in response.message

512 + assert "status = ready" in response.message

513 + assert target.read_text(encoding="utf-8") == "line-1\nstatus = ready\nline-3\n"

514 + realpath = os.path.realpath(target)

515 + assert agent.data[module._MTIME_KEY][realpath] == {

516 + "mtime": 0,

517 + "total_lines": 0,

518 + }

519 + assert calls[0] == (

520 + "text_editor_patch_before",

521 + {

522 + "path": str(target),

523 + "old_text": "status = draft",

524 + "new_text": "status = ready",

525 + "edits": [],

526 + "mode": "replace",

527 + },

528 + )

529 + assert calls[1][0] == "text_editor_patch_after"

530 + assert calls[1][1]["mode"] == "replace"

531 +

532 +

533 def test_text_editor_execute_accepts_action_alias_for_read(

534 tmp_path: Path, monkeypatch: pytest.MonkeyPatch

535 ) -> None:

@@ -472,7 +567,7 @@ def test_text_editor_patch_text_rejects_simultaneous_edits(

567 )

568 )

569

475 - assert "provide either edits or patch_text" in response.message

570 + assert "provide exactly one patch form" in response.message

571 assert target.read_text(encoding="utf-8") == "line-1\n"

572

573

tests/test_tool_action_contracts.py

+83

@@ -209,6 +209,89 @@ def test_behaviour_adjustment_normalizes_duplicate_rules(monkeypatch):

209 assert rules == "## Behavioral rules\n* Favor Linux commands.\n* Token rule.\n"

210

211

212 +def test_behaviour_prompts_preserve_exact_rules_and_avoid_promptinclude():

213 + behaviour_prompt = Path("prompts/agent.system.tool.behaviour.md").read_text(

214 + encoding="utf-8"

215 + )

216 + merge_prompt = Path("prompts/behaviour.merge.sys.md").read_text(

217 + encoding="utf-8"

218 + )

219 + promptinclude_prompt = Path(

220 + "plugins/_promptinclude/prompts/agent.system.promptinclude.md"

221 + ).read_text(encoding="utf-8")

222 +

223 + assert "exact-response rules" in behaviour_prompt

224 + assert "preserve it verbatim" in behaviour_prompt

225 + assert "respond exactly with a phrase" in merge_prompt

226 + assert "use behaviour_adjustment, not promptinclude files" in promptinclude_prompt

227 +

228 +

229 +def _load_a2a_chat_tool(monkeypatch):

230 + _install_tool_stub(monkeypatch)

231 + sys.modules.pop("tools.a2a_chat", None)

232 + return importlib.import_module("tools.a2a_chat")

233 +

234 +

235 +def test_a2a_extracts_latest_assistant_text_from_history(monkeypatch):

236 + module = _load_a2a_chat_tool(monkeypatch)

237 +

238 + final = {

239 + "result": {

240 + "history": [

241 + {

242 + "role": "user",

243 + "parts": [{"kind": "text", "text": "what is 2+2?"}],

244 + },

245 + {

246 + "role": "assistant",

247 + "parts": [{"kind": "text", "text": "4"}],

248 + },

249 + ]

250 + }

251 + }

252 +

253 + assert module._extract_latest_assistant_text(final) == "4"

254 +

255 +

256 +def test_a2a_extracts_status_or_artifact_text_when_history_is_empty(monkeypatch):

257 + module = _load_a2a_chat_tool(monkeypatch)

258 +

259 + status_final = {

260 + "result": {

261 + "status": {

262 + "message": {

263 + "parts": [{"kind": "text", "text": "status answer"}]

264 + }

265 + }

266 + }

267 + }

268 + artifact_final = {

269 + "result": {

270 + "artifacts": [

271 + {"parts": [{"kind": "text", "text": "artifact answer"}]}

272 + ]

273 + }

274 + }

275 +

276 + assert module._extract_latest_assistant_text(status_final) == "status answer"

277 + assert module._extract_latest_assistant_text(artifact_final) == "artifact answer"

278 +

279 +

280 +def test_a2a_session_key_normalizes_explicit_a2a_path(monkeypatch):

281 + module = _load_a2a_chat_tool(monkeypatch)

282 +

283 + assert module._session_key("http://localhost:32080/a2a") == "http://localhost:32080"

284 + assert module._session_key("http://localhost:32080") == "http://localhost:32080"

285 +

286 +

287 +def test_a2a_empty_response_message_is_explicit_failure(monkeypatch):

288 + module = _load_a2a_chat_tool(monkeypatch)

289 +

290 + assert module._extract_latest_assistant_text({"result": {"history": []}}) == ""

291 + assert "failed" in module.A2A_EMPTY_RESPONSE_ERROR

292 + assert "not success" in module.A2A_EMPTY_RESPONSE_ERROR

293 +

294 +

295 def test_notify_user_prompt_documents_numeric_priority_values():

296 prompt = Path("prompts/agent.system.tool.notify_user.md").read_text(

297 encoding="utf-8"

tools/a2a_chat.py

+94 -13

@@ -1,8 +1,90 @@

1 +from typing import Any

2 +

3 from helpers.tool import Tool, Response

4 from helpers.print_style import PrintStyle

5 from helpers.fasta2a_client import connect_to_agent, is_client_available

8 +A2A_EMPTY_RESPONSE_ERROR = (

9 + "A2A chat failed: the remote task completed but no assistant text was found. "

10 + "Expected final.result.history to include an assistant message with a text "

11 + "part, or a text artifact/status message. Treat this as a failed remote "

12 + "response, not success."

13 +)

14 +

15 +

16 +def _session_key(agent_url: str) -> str:

17 + """Keep root and explicit /a2a URLs in the same conversation cache."""

18 + normalized = agent_url.rstrip("/")

19 + if normalized.endswith("/a2a"):

20 + return normalized[:-4].rstrip("/")

21 + return normalized

22 +

23 +

24 +def _text_from_part(part: Any) -> str:

25 + if not isinstance(part, dict):

26 + return ""

27 + for key in ("text", "content"):

28 + value = part.get(key)

29 + if isinstance(value, str) and value.strip():

30 + return value.strip()

31 + return ""

32 +

33 +

34 +def _text_from_message(message: Any) -> str:

35 + if isinstance(message, str):

36 + return message.strip()

37 + if not isinstance(message, dict):

38 + return ""

39 +

40 + parts = message.get("parts")

41 + if isinstance(parts, list):

42 + texts = [_text_from_part(part) for part in parts]

43 + text = "\n".join(text for text in texts if text)

44 + if text:

45 + return text

46 +

47 + for key in ("text", "content", "message", "output"):

48 + value = message.get(key)

49 + if isinstance(value, str) and value.strip():

50 + return value.strip()

51 +

52 + return ""

53 +

54 +

55 +def _extract_latest_assistant_text(task_response: Any) -> str:

56 + if not isinstance(task_response, dict):

57 + return ""

58 +

59 + result = task_response.get("result", task_response)

60 + if not isinstance(result, dict):

61 + return ""

62 +

63 + history = result.get("history")

64 + if isinstance(history, list):

65 + for message in reversed(history):

66 + if isinstance(message, dict) and message.get("role") == "user":

67 + continue

68 + text = _text_from_message(message)

69 + if text:

70 + return text

71 +

72 + status = result.get("status")

73 + if isinstance(status, dict):

74 + text = _text_from_message(status.get("message"))

75 + if text:

76 + return text

77 +

78 + artifacts = result.get("artifacts")

79 + if isinstance(artifacts, list):

80 + for artifact in reversed(artifacts):

81 + text = _text_from_message(artifact)

82 + if text:

83 + return text

84 +

85 + return _text_from_message(result)

86 +

87 +

88 class A2AChatTool(Tool):

89 """Communicate with another FastA2A-compatible agent."""

@@ -21,12 +103,13 @@ class A2AChatTool(Tool):

103

104 # Retrieve or create session cache on the Agent instance

105 sessions: dict[str, str] = self.agent.get_data("_a2a_sessions") or {}

106 + cache_key = _session_key(agent_url)

107

25 - # Handle reset flag – start fresh conversation

26 - if reset and agent_url in sessions:

27 - sessions.pop(agent_url, None)

108 + # Handle reset flag: start fresh conversation

109 + if reset and cache_key in sessions:

110 + sessions.pop(cache_key, None)

111

29 - context_id = None if reset else sessions.get(agent_url)

112 + context_id = None if reset else sessions.get(cache_key)

113 try:

114 async with await connect_to_agent(agent_url) as conn:

115 task_resp = await conn.send_message(user_message, attachments=attachments, context_id=context_id)

@@ -36,18 +119,16 @@ class A2AChatTool(Tool):

119 final = await conn.wait_for_completion(task_id)

120 new_context_id = final["result"].get("context_id") # type: ignore[index]

121 if isinstance(new_context_id, str):

39 - sessions[agent_url] = new_context_id

122 + sessions[cache_key] = new_context_id

123 # persist back to agent data

124 self.agent.set_data("_a2a_sessions", sessions)

42 - # Extract latest assistant text

43 - history = final["result"].get("history", [])

44 - assistant_text = ""

45 - if history:

46 - last_parts = history[-1].get("parts", [])

47 - assistant_text = "\n".join(

48 - p.get("text", "") for p in last_parts if p.get("kind") == "text"

125 + assistant_text = _extract_latest_assistant_text(final)

126 + if not assistant_text:

127 + return Response(

128 + message=A2A_EMPTY_RESPONSE_ERROR,

129 + break_loop=False,

130 )

50 - return Response(message=assistant_text or "(no response)", break_loop=False)

131 + return Response(message=assistant_text, break_loop=False)

132 except Exception as e:

133 PrintStyle.error(f"A2A chat error: {e}")

134 return Response(message=f"A2A chat error: {e}", break_loop=False)