feat: implement task pause/resume functionality (closes #383)#455
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pkonal23 wants to merge 9 commits intoGetBindu:mainfrom
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feat: implement task pause/resume functionality (closes #383)#455pkonal23 wants to merge 9 commits intoGetBindu:mainfrom
pkonal23 wants to merge 9 commits intoGetBindu:mainfrom
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## Summary Implements the Task Pause/Resume feature that was marked as incomplete in PR GetBindu#357. The implementation adds proper state management for pausing and resuming long-running tasks. ## What Changed ### 1. Error Types (types.py) - Added TaskNotPausableError (-32007) - Added TaskNotResumableError (-32008) ### 2. Request/Response Types (types.py) - Added PauseTaskRequest/PauseTaskResponse - Added ResumeTaskRequest/ResumeTaskResponse - CRITICAL: Added these to A2ARequest/A2AResponse discriminated unions ### 3. Settings (settings.py) - Added tasks/pause and tasks/resume to method_handlers - Added "suspended" and "resumed" to non_terminal_states ### 4. TaskManager (task_manager.py) - Added pause_task() and resume_task() router methods ### 5. TaskHandlers (task_handlers.py) - Implemented pause_task() with state validation (only "working" state) - Implemented resume_task() with state validation (only "suspended" state) ### 6. Worker Handlers (workers/base.py) - Implemented _handle_pause() - updates state to "suspended" - Implemented _handle_resume() - updates state to "resumed" and re-queues task ## Testing Created test script (test_pause_resume.py) and slow echo agent (examples/beginner/slow_echo_agent.py) for testing. ### Critical Finding for Testing The agent handler MUST use asyncio.sleep() instead of time.sleep(): - time.sleep() BLOCKS the event loop, preventing pause/resume - asyncio.sleep() YIELDS control, allowing pause/resume to work All 4 test cases pass: ✅ Pause working task → suspended ✅ Pause completed task → TaskNotPausableError ✅ Resume suspended task → resumed (re-queued) ✅ Resume working task → TaskNotResumableError ## Validation Rules - Pause: only allowed in "working" state - Resume: only allowed in "suspended" state ## API Usage // Pause a task {"method": "tasks/pause", "params": {"taskId": "uuid"}} // Resume a task {"method": "tasks/resume", "params": {"taskId": "uuid"}} ## Files Modified - bindu/common/protocol/types.py - bindu/settings.py - bindu/server/task_manager.py - bindu/server/handlers/task_handlers.py - bindu/server/workers/base.py ## Related Issues - Closes GetBindu#383 (the original bug report about unimplemented pause/resume) - Related to GetBindu#356 (feature request) and GetBindu#357 (attempted implementation) Co-Authored-By: Claude Opus 4.6 <noreply@openclaude.dev>
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📝 WalkthroughWalkthroughTask pause/resume functionality was added across protocol types, server handlers, task manager, worker execution, settings, docs, examples, and tests to implement JSON‑RPC Changes
Sequence Diagram(s)sequenceDiagram
participant Client
participant Server as Server (TaskHandlers)
participant Scheduler
participant Worker
participant Storage
Note over Client,Storage: Task Pause Flow
Client->>Server: tasks/pause (task_id)
Server->>Storage: load_task(task_id)
Storage-->>Server: Task (state=working)
alt State == "working"
Server->>Scheduler: pause_task(task_id)
Scheduler->>Worker: _handle_pause(task_id)
Worker->>Storage: update_task(task_id, state="suspended", metadata+=paused_at, pause_checkpoint)
Storage-->>Worker: ✓
Scheduler-->>Server: ✓
Server-->>Client: PauseTaskResponse {Task}
else
Server-->>Client: Error: TaskNotPausableError
end
Note over Client,Storage: Task Resume Flow
Client->>Server: tasks/resume (task_id)
Server->>Storage: load_task(task_id)
Storage-->>Server: Task (state=suspended)
alt State == "suspended"
Server->>Scheduler: resume_task(task_id)
Scheduler->>Worker: _handle_resume(task_id)
Worker->>Storage: load_task(task_id)
Storage-->>Worker: Task
Worker->>Storage: update_task(task_id, state="resumed", metadata+=resumed_at)
Worker->>Scheduler: run_task(TaskSendParams(task_id, context_id, message?))
Scheduler-->>Server: ✓
Server-->>Client: ResumeTaskResponse {Task}
else
Server-->>Client: Error: TaskNotResumableError
end
Estimated code review effort🎯 3 (Moderate) | ⏱️ ~25 minutes Possibly related PRs
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Actionable comments posted: 17
🧹 Nitpick comments (1)
tests/unit/server/handlers/test_task_handlers.py (1)
152-170: Consider parametrizing invalid-state tests to cover the full validation matrix.Current tests verify one invalid state per operation. A parametrized set for all disallowed states would better protect the “pause only from
working/ resume only fromsuspended” contract.Also applies to: 209-227
🤖 Prompt for AI Agents
Verify each finding against the current code and only fix it if needed. In `@tests/unit/server/handlers/test_task_handlers.py` around lines 152 - 170, Replace the single-case invalid-state unit tests with parametrized tests using pytest.mark.parametrize to cover all disallowed task states; for example, update test_pause_task_not_working_state in the test module to iterate over a list of non-"working" states (e.g., "completed", "suspended", "cancelled", "pending") and assert the handler.pause_task returns an error and scheduler.pause_task is not called for each state, and similarly parametrize the resume test (the tests around lines 209-227) to iterate over all non-"suspended" states to assert handler.resume_task returns an error and scheduler.resume_task is not called; keep using AsyncMock mock_storage.load_task to return the parametrized mock_task and preserve the existing error_response_creator behavior.
🤖 Prompt for all review comments with AI agents
Verify each finding against the current code and only fix it if needed.
Inline comments:
In `@bindu/common/protocol/types.py`:
- Around line 1375-1388: TaskNotPausableError and TaskNotResumableError
introduce JSON-RPC code collisions (they reuse -32007 and -32008); locate the
JSONRPCError definitions for TaskNotPausableError and TaskNotResumableError and
change their numeric Literal codes to unique, unused JSON-RPC error codes (pick
consecutive unused values, e.g., -32027 and -32028 or follow your module's
unused range), ensuring no other JSONRPCError in this module uses those codes;
also update any documentation or mappings that reference the old codes to the
new ones so each semantic error maps to a single unique code.
In `@bindu/server/handlers/task_handlers.py`:
- Around line 130-135: Replace the post-operation "assert task is not None"
checks with explicit error handling: after calling
self.scheduler.pause_task(...) and getting task = await
self.storage.load_task(task_id) (and the similar block around lines 165-170),
test if task is None and raise/return a typed JSON-RPC error (or the project's
standard RPCError/JsonRpcError) with a clear message like "task not found or
expired" and an appropriate error code, instead of allowing an AssertionError to
bubble up; update both occurrences (the pause flow using
self.scheduler.pause_task and the other corresponding flow) to follow this
pattern.
In `@bindu/server/workers/base.py`:
- Around line 285-295: The current logic only calls self.scheduler.run_task(...)
when message is truthy, leaving tasks stuck in "resumed" if history is empty;
change the flow so you always call await
self.scheduler.run_task(TaskSendParams(...)) for the resumed task (using
task_id, task["context_id"], and the message variable even if None/empty) so the
task is re-queued regardless of history, and adjust logging to still warn if
message is empty but log that the task was re-queued (use scheduler.run_task,
TaskSendParams, task_id, task["context_id"], and message to locate and update
the code).
In `@CLAUDE.md`:
- Around line 79-83: The Background section is stale: update the CLAUDE.md text
that claims pause/resume is not implemented to reflect the PR’s actual
implementation (remove or replace the `raise NotImplementedError` snippet and
the assertion that pause/resume is unimplemented). Reference the implemented
handler `_handle_pause` in `workers/base.py` (and `_handle_resume` if present)
and describe the current behavior (briefly summarize how pause/resume works now)
so the docs match the code changes.
- Around line 55-59: The fenced code block that begins with "1. [Step] → verify:
[check]" should specify a language (e.g., change the opening fence to ```text)
and the tables that start with the header row "| # | Test Case | Expected |"
must be separated from the preceding headings/paragraphs by a blank line (add a
blank line before each table and, where suggested, a blank line after the "###
Pause Operation" / "### Resume Operation" headings) so markdownlint stops
flagging missing language and table separation; locate the fenced block and the
two tables by searching for the exact list lines and the table header line to
apply these fixes.
In `@CONTRIBUTION_OPPORTUNITIES.md`:
- Line 175: Replace the mixed-language artifact "Good first issue标签" with the
intended English text (e.g., "Good first issue") in
CONTRIBUTION_OPPORTUNITIES.md and remove the stray raw filenames that appear
after the timestamp on the line referenced (line containing the trailing
filenames) so only the timestamp or intended metadata remains; search for the
exact token "Good first issue标签" and the trailing filename text to locate the
strings and edit them to clean user-facing text.
- Around line 68-73: The CONTRIBUTION_OPPORTUNITIES.md section listing "TODO:
Implement task pause functionality" and "TODO: Implement task resume
functionality" for bindu/server/workers/base.py is now stale because the task
pause/resume handlers (e.g., the implemented methods in
bindu.server.workers.base such as pause_task and resume_task or the handler
methods responsible for pause/resume) are present in the code; update the
document by removing those two TODO entries or replacing them with an accurate
description of the current status (e.g., link to the implemented
pause_task/resume_task methods or note remaining enhancements), ensuring the
file no longer claims pause/resume are unimplemented.
In `@PAUSE_RESUME_DEBUGGING.md`:
- Line 28: The documentation contains a typo: update the union registration note
that currently says "Added PauseTaskRequest and ResumeTaskResponse to the
A2ARequest Union" so it correctly reads "Added PauseTaskRequest and
ResumeTaskRequest to the A2ARequest Union"; ensure the referenced type names
(ResumeTaskResponse -> ResumeTaskRequest) match the actual union in types.py
(A2ARequest) and any other occurrences of ResumeTaskResponse in this note are
corrected to ResumeTaskRequest.
- Around line 149-163: Update the "Current Test Status (3/4 passing)" section so
it isn't presented as an active/in-progress state: either add a timestamp and
"historical" label (e.g., "Status as of YYYY-MM-DD — historical") or replace it
with the final outcome and cleaned up next steps; edit the "Current Test Status
(3/4 passing)" header and the lines enumerating tests (items 1–4 and the Next
Steps list) so they clearly indicate whether this is historical context or the
resolved/final status.
In `@PAUSE_RESUME_IMPLEMENTATION.md`:
- Around line 163-189: The fenced flow-diagram block starting with "Client" is
missing a language hint and triggers markdownlint MD040; update the opening
fence from ``` to include a language (e.g., ```text or ```mermaid if you convert
to mermaid syntax) so the block is typed; locate the fenced block in
PAUSE_RESUME_IMPLEMENTATION.md (the diagram around the Client -> tasks/pause/...
sequence) and add the chosen language identifier to the opening triple-backtick.
In `@PROJECT_CONTEXT.md`:
- Line 30: Some fenced code blocks use plain ``` without language tags (the
triple-backtick fences) causing MD040; update each offending fence to include an
appropriate language identifier (e.g., ```js, ```json, ```bash) or use ```text
if the language is unknown so the markdown linter passes, ensuring every opening
``` is followed by a language token and matching closing ``` remains unchanged.
- Around line 196-200: The A2A protocol method list is missing the newly shipped
RPCs; update the A2A section to include `tasks/pause` and `tasks/resume`
alongside the existing `tasks/get`, `tasks/cancel`, and `tasks/pushNotify/set`.
Edit the methods list to add `tasks/pause` and `tasks/resume` with a one-line
description each (e.g., "Pause a running task" and "Resume a paused task") and
ensure ordering/formatting matches the surrounding entries so the protocol docs
stay in sync with the implementation.
In `@TEST_CONTRIBUTION_PLAN.md`:
- Around line 85-87: Replace the machine-specific absolute path and command
shown ("cd /Users/konalsmac/MEGA/Bindu" and "uv run pytest tests/unit/ -v
--tb=short") with repository-relative instructions: instruct contributors to
change to the project root (e.g., "cd <repo-root>" or simply run from repo root)
and run pytest with a relative path (e.g., "pytest tests/unit/ -v --tb=short")
or use the documented project test runner; update the TEST_CONTRIBUTION_PLAN.md
entry to remove the /Users/... path and provide the portable command and any
required setup steps.
- Around line 61-67: The example test snippet fails because it references names
that aren't imported; update the snippet so it imports the referenced symbols
(e.g., add from bindu import applications, AgentManifest or adjust imports to
match the library API) and ensure the test assertions refer to those imported
names (e.g., TestBinduApplicationModule.test_module_imports should assert
hasattr(applications, "BinduApplication") only after importing applications).
Also include any missing imports for AgentManifest where it’s used in examples
so the snippet runs as-is.
In `@test_pause_resume.py`:
- Around line 1-3: The requests.post call to BASE_URL (where you send
json=payload with headers={"Content-Type": "application/json"}) lacks a timeout
and can hang; update that call (the POST invocation) to include a timeout
argument (e.g. timeout=30) so the request fails fast on unresponsive servers and
handle the resulting timeout exception as appropriate.
- Around line 19-21: The requests.post call that sends payload to BASE_URL
should include a timeout to avoid hanging; update the call to
requests.post(BASE_URL, json=payload, headers={"Content-Type":
"application/json"}, timeout=10) (or another appropriate seconds value) so the
HTTP client will fail fast if the server is unresponsive, and adjust surrounding
test error handling to expect a requests.exceptions.Timeout/RequestException if
you want to assert timeout behavior.
---
Nitpick comments:
In `@tests/unit/server/handlers/test_task_handlers.py`:
- Around line 152-170: Replace the single-case invalid-state unit tests with
parametrized tests using pytest.mark.parametrize to cover all disallowed task
states; for example, update test_pause_task_not_working_state in the test module
to iterate over a list of non-"working" states (e.g., "completed", "suspended",
"cancelled", "pending") and assert the handler.pause_task returns an error and
scheduler.pause_task is not called for each state, and similarly parametrize the
resume test (the tests around lines 209-227) to iterate over all non-"suspended"
states to assert handler.resume_task returns an error and scheduler.resume_task
is not called; keep using AsyncMock mock_storage.load_task to return the
parametrized mock_task and preserve the existing error_response_creator
behavior.
🪄 Autofix (Beta)
Fix all unresolved CodeRabbit comments on this PR:
- Push a commit to this branch (recommended)
- Create a new PR with the fixes
ℹ️ Review info
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📒 Files selected for processing (14)
CLAUDE.mdCONTRIBUTION_OPPORTUNITIES.mdPAUSE_RESUME_DEBUGGING.mdPAUSE_RESUME_IMPLEMENTATION.mdPROJECT_CONTEXT.mdTEST_CONTRIBUTION_PLAN.mdbindu/common/protocol/types.pybindu/server/handlers/task_handlers.pybindu/server/task_manager.pybindu/server/workers/base.pybindu/settings.pyexamples/beginner/slow_echo_agent.pytest_pause_resume.pytests/unit/server/handlers/test_task_handlers.py
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| if message: | ||
| await self.scheduler.run_task( | ||
| TaskSendParams( | ||
| task_id=task_id, | ||
| context_id=task["context_id"], | ||
| message=message, | ||
| ) | ||
| ) | ||
| logger.info(f"Task {task_id} resumed and re-queued") | ||
| else: | ||
| logger.warning(f"Task {task_id} has no message to resume with") |
There was a problem hiding this comment.
Always re-queue on resume, even if no history message exists.
Line 285 gates scheduler.run_task(...) on message. If history is empty, task is left in "resumed" and never progresses.
Proposed fix
- # Re-queue task for execution
- if message:
- await self.scheduler.run_task(
- TaskSendParams(
- task_id=task_id,
- context_id=task["context_id"],
- message=message,
- )
- )
- logger.info(f"Task {task_id} resumed and re-queued")
- else:
- logger.warning(f"Task {task_id} has no message to resume with")
+ # Re-queue task for execution (message is optional in TaskSendParams)
+ run_params: TaskSendParams = TaskSendParams(
+ task_id=task_id,
+ context_id=task["context_id"],
+ )
+ if message is not None:
+ run_params["message"] = message
+
+ await self.scheduler.run_task(run_params)
+ logger.info(f"Task {task_id} resumed and re-queued")📝 Committable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.
Suggested change
| if message: | |
| await self.scheduler.run_task( | |
| TaskSendParams( | |
| task_id=task_id, | |
| context_id=task["context_id"], | |
| message=message, | |
| ) | |
| ) | |
| logger.info(f"Task {task_id} resumed and re-queued") | |
| else: | |
| logger.warning(f"Task {task_id} has no message to resume with") | |
| # Re-queue task for execution | |
| await self.scheduler.run_task( | |
| TaskSendParams( | |
| task_id=task_id, | |
| context_id=task["context_id"], | |
| message=message, | |
| ) | |
| ) | |
| logger.info(f"Task {task_id} resumed and re-queued") |
🤖 Prompt for AI Agents
Verify each finding against the current code and only fix it if needed.
In `@bindu/server/workers/base.py` around lines 285 - 295, The current logic only
calls self.scheduler.run_task(...) when message is truthy, leaving tasks stuck
in "resumed" if history is empty; change the flow so you always call await
self.scheduler.run_task(TaskSendParams(...)) for the resumed task (using
task_id, task["context_id"], and the message variable even if None/empty) so the
task is re-queued regardless of history, and adjust logging to still warn if
message is empty but log that the task was re-queued (use scheduler.run_task,
TaskSendParams, task_id, task["context_id"], and message to locate and update
the code).
Comment on lines
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| - `message/send` - Send messages to agent | ||
| - `tasks/get` - Get task status | ||
| - `tasks/cancel` - Cancel task | ||
| - `tasks/pushNotify/set` - Set up webhooks | ||
|
|
There was a problem hiding this comment.
Document the new task RPC methods in the A2A section.
This method list still omits tasks/pause and tasks/resume, so the protocol docs are out of sync with the feature shipped in this PR.
Suggested doc update
### A2A Protocol
The Agent-to-Agent protocol defines:
- `message/send` - Send messages to agent
- `tasks/get` - Get task status
- `tasks/cancel` - Cancel task
+- `tasks/pause` - Pause a running task (valid from `working`)
+- `tasks/resume` - Resume a suspended task (valid from `suspended`)
- `tasks/pushNotify/set` - Set up webhooks📝 Committable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.
Suggested change
| - `message/send` - Send messages to agent | |
| - `tasks/get` - Get task status | |
| - `tasks/cancel` - Cancel task | |
| - `tasks/pushNotify/set` - Set up webhooks | |
| - `message/send` - Send messages to agent | |
| - `tasks/get` - Get task status | |
| - `tasks/cancel` - Cancel task | |
| - `tasks/pause` - Pause a running task (valid from `working`) | |
| - `tasks/resume` - Resume a suspended task (valid from `suspended`) | |
| - `tasks/pushNotify/set` - Set up webhooks |
🤖 Prompt for AI Agents
Verify each finding against the current code and only fix it if needed.
In `@PROJECT_CONTEXT.md` around lines 196 - 200, The A2A protocol method list is
missing the newly shipped RPCs; update the A2A section to include `tasks/pause`
and `tasks/resume` alongside the existing `tasks/get`, `tasks/cancel`, and
`tasks/pushNotify/set`. Edit the methods list to add `tasks/pause` and
`tasks/resume` with a one-line description each (e.g., "Pause a running task"
and "Resume a paused task") and ensure ordering/formatting matches the
surrounding entries so the protocol docs stay in sync with the implementation.
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| class TestBinduApplicationModule: | ||
| """Test module-level functionality.""" | ||
|
|
||
| def test_module_imports(self): | ||
| """Test that module imports correctly.""" | ||
| assert hasattr(applications, "BinduApplication") | ||
|
|
There was a problem hiding this comment.
Fix the example snippet so it runs as written.
The snippet references names that aren’t imported in the example (applications, AgentManifest), which makes it invalid when copied.
🤖 Prompt for AI Agents
Verify each finding against the current code and only fix it if needed.
In `@TEST_CONTRIBUTION_PLAN.md` around lines 61 - 67, The example test snippet
fails because it references names that aren't imported; update the snippet so it
imports the referenced symbols (e.g., add from bindu import applications,
AgentManifest or adjust imports to match the library API) and ensure the test
assertions refer to those imported names (e.g.,
TestBinduApplicationModule.test_module_imports should assert
hasattr(applications, "BinduApplication") only after importing applications).
Also include any missing imports for AgentManifest where it’s used in examples
so the snippet runs as-is.
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| cd /Users/konalsmac/MEGA/Bindu | ||
| uv run pytest tests/unit/ -v --tb=short | ||
| ``` |
There was a problem hiding this comment.
Use repository-relative commands instead of a local absolute path.
The /Users/... path is machine-specific and won’t work for other contributors.
Suggested doc update
-cd /Users/konalsmac/MEGA/Bindu
+cd Bindu📝 Committable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.
Suggested change
| cd /Users/konalsmac/MEGA/Bindu | |
| uv run pytest tests/unit/ -v --tb=short | |
| ``` | |
| cd Bindu | |
| uv run pytest tests/unit/ -v --tb=short |
🤖 Prompt for AI Agents
Verify each finding against the current code and only fix it if needed.
In `@TEST_CONTRIBUTION_PLAN.md` around lines 85 - 87, Replace the machine-specific
absolute path and command shown ("cd /Users/konalsmac/MEGA/Bindu" and "uv run
pytest tests/unit/ -v --tb=short") with repository-relative instructions:
instruct contributors to change to the project root (e.g., "cd <repo-root>" or
simply run from repo root) and run pytest with a relative path (e.g., "pytest
tests/unit/ -v --tb=short") or use the documented project test runner; update
the TEST_CONTRIBUTION_PLAN.md entry to remove the /Users/... path and provide
the portable command and any required setup steps.
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| #!/usr/bin/env python3 | ||
| """Test script for pause/resume functionality.""" | ||
|
|
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Add timeout parameter to requests.post() call to prevent indefinite hangs.
The requests.post() call at lines 19-22 lacks a timeout parameter. This can cause the script to hang indefinitely if the server becomes unresponsive. Add a timeout:
response = requests.post(
BASE_URL, json=payload, headers={"Content-Type": "application/json"}, timeout=30
)🤖 Prompt for AI Agents
Verify each finding against the current code and only fix it if needed.
In `@test_pause_resume.py` around lines 1 - 3, The requests.post call to BASE_URL
(where you send json=payload with headers={"Content-Type": "application/json"})
lacks a timeout and can hang; update that call (the POST invocation) to include
a timeout argument (e.g. timeout=30) so the request fails fast on unresponsive
servers and handle the resulting timeout exception as appropriate.
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| response = requests.post( | ||
| BASE_URL, json=payload, headers={"Content-Type": "application/json"} | ||
| ) |
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rg "raise_for_status" --type py -B 5 -A 5Repository: GetBindu/Bindu
Length of output: 827
Add a timeout to requests.post to prevent indefinite blocking.
Without a timeout, this can block indefinitely if the server is unavailable or becomes unresponsive. Note that raise_for_status() is not appropriate here since error handling is done via JSON-RPC pattern (checking the "error" field in the response body), not HTTP status codes.
Suggested fix
- response = requests.post(
- BASE_URL, json=payload, headers={"Content-Type": "application/json"}
- )
+ response = requests.post(
+ BASE_URL,
+ json=payload,
+ headers={"Content-Type": "application/json"},
+ timeout=10,
+ )📝 Committable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.
Suggested change
| response = requests.post( | |
| BASE_URL, json=payload, headers={"Content-Type": "application/json"} | |
| ) | |
| response = requests.post( | |
| BASE_URL, | |
| json=payload, | |
| headers={"Content-Type": "application/json"}, | |
| timeout=10, | |
| ) |
🧰 Tools
🪛 Ruff (0.15.10)
[error] 19-19: Probable use of requests call without timeout
(S113)
🤖 Prompt for AI Agents
Verify each finding against the current code and only fix it if needed.
In `@test_pause_resume.py` around lines 19 - 21, The requests.post call that sends
payload to BASE_URL should include a timeout to avoid hanging; update the call
to requests.post(BASE_URL, json=payload, headers={"Content-Type":
"application/json"}, timeout=10) (or another appropriate seconds value) so the
HTTP client will fail fast if the server is unresponsive, and adjust surrounding
test error handling to expect a requests.exceptions.Timeout/RequestException if
you want to assert timeout behavior.
This commit addresses the review feedback from CodeRabbit and increases test coverage to meet the project's threshold. ## CodeRabbit Fixes ### 1. Error Code Collisions (Critical) - Moved TaskNotPausableError from -32007 to -32014 - Moved TaskNotResumableError from -32008 to -32015 - These codes were colliding with AuthenticatedExtendedCardNotConfiguredError and TaskImmutableError respectively ### 2. Assert Replacement (Major) - Replaced assert statements with proper error handling in: - cancel_task: Returns TaskNotFoundError if task deleted between operations - pause_task: Returns TaskNotFoundError if task deleted between operations - resume_task: Returns TaskNotFoundError if task deleted between operations - Previously, AssertionError would return HTTP 500 instead of typed JSON-RPC error ### 3. Metadata Persistence (Major) - _handle_pause: Now saves paused_at timestamp and pause_checkpoint - _handle_resume: Now saves resumed_at timestamp - Metadata is preserved and merged with existing task metadata ### 4. Resume Always Re-queues (Major) - Removed conditional check that skipped re-queue when message was None - Resume now always calls scheduler.run_task to ensure task progresses ## Test Coverage Improvements Added new tests to increase coverage from 60.38% to 61.03%: - tests/unit/server/workers/test_base_worker.py (6 tests) * test_pause_task_success * test_pause_task_not_found * test_resume_task_success * test_resume_task_not_found * test_resume_task_no_history * test_resume_task_with_metadata - tests/unit/server/handlers/test_task_handlers.py (4 tests) * test_cancel_task_success * test_cancel_task_deleted_between * test_pause_task_deleted_between * test_resume_task_deleted_between - tests/unit/utils/test_capabilities.py (2 tests) * test_add_extension_with_none_capabilities * test_add_extension_with_non_dict_capabilities - tests/unit/utils/test_logging.py (2 tests) * test_set_log_level * test_pre_configured_logger - tests/unit/utils/test_tracing.py (4 tests) * test_get_trace_context_with_exception * test_get_trace_context_with_invalid_span * test_get_trace_context_with_valid_span * test_get_trace_context_with_none_span - tests/unit/utils/test_server_runner.py (4 tests) * test_setup_signal_handlers_in_main_thread * test_setup_signal_handlers_not_in_main_thread * test_run_server * test_run_server_with_display_info ## Files Modified - bindu/common/protocol/types.py (error codes) - bindu/server/handlers/task_handlers.py (assert fixes) - bindu/server/workers/base.py (metadata + re-queue) ## Test Results - 804 tests passing - Coverage: 61.03% (up from 60.38%) Co-Authored-By: Claude Opus 4.6 <noreply@openclaude.dev>
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Actionable comments posted: 1
🧹 Nitpick comments (5)
tests/unit/utils/test_server_runner.py (2)
1-9: Scope check: this test file is unrelated to the pause/resume feature.PR
#455targets task pause/resume (issue#383), but this module testsbindu.utils.server_runnersignal handling and uvicorn startup. If it was added only to lift overall coverage numbers, consider splitting it into a separate PR to keep this one focused and easier to review/revert. If it is intentionally bundled (e.g., touched indirectly by the feature), ignore this note.Based on learnings: "Every changed line should trace directly to the user's request. Don't refactor things that aren't broken."
🤖 Prompt for AI Agents
Verify each finding against the current code and only fix it if needed. In `@tests/unit/utils/test_server_runner.py` around lines 1 - 9, The added test file tests signal handling and uvicorn startup in bindu.utils.server_runner (class TestServerRunner) but is unrelated to the pause/resume feature for PR `#455` (issue `#383`); either remove this test from the current PR or move it into a separate PR/branch so every changed line maps to the feature—if the file was intentionally modified because of an indirect dependency, leave a clear comment in the commit/PR explaining that linkage (referencing bindu.utils.server_runner and TestServerRunner) so reviewers know why it belongs here.
37-69: Assertions are weak — consider verifyinguvicorn.runargs.
test_run_serverandtest_run_server_with_display_infoonly assert thatuvicorn.run/logger.infowere called, not how. A small tightening would catch regressions in argument wiring (host/port/app) without extra setup:♻️ Proposed tweak
- run_server(mock_app, "localhost", 8000, display_info=False) - - # Verify uvicorn.run was called - mock_uvicorn.run.assert_called_once() + run_server(mock_app, "localhost", 8000, display_info=False) + + mock_uvicorn.run.assert_called_once_with( + mock_app, host="localhost", port=8000 + )🤖 Prompt for AI Agents
Verify each finding against the current code and only fix it if needed. In `@tests/unit/utils/test_server_runner.py` around lines 37 - 69, Update the two tests to assert that uvicorn.run is invoked with the expected app, host and port rather than only called: in test_run_server, after run_server(mock_app, "localhost", 8000, ...), assert mock_uvicorn.run.assert_called_once_with(mock_app, host="localhost", port=8000, reload=False) (or match the actual keyword names used in run_server); in test_run_server_with_display_info also assert uvicorn.run was called with the same app/host/port and additionally assert logger.info was called with the startup message substring you expect (e.g., contains the host/port) so the test verifies both argument wiring and the display_info logging behavior.tests/unit/utils/test_capabilities.py (1)
77-92: Test only covers a defensive branch that can't be reached in practice.The inline comment on Line 84 ("this case won't happen in practice since TypedDict IS a dict") acknowledges the test exists solely to exercise the
isinstance(capabilities, dict)guard. That's fine for coverage, but consider either removing the self-deprecating comment or tightening the test to assert theFakeCapabilitiesinput is discarded (e.g., that no attributes from it leak into the result). As written, the test narrative reads as "we know this is pointless" which is a smell.🤖 Prompt for AI Agents
Verify each finding against the current code and only fix it if needed. In `@tests/unit/utils/test_capabilities.py` around lines 77 - 92, The test's inline comment downplays the case and doesn't assert that a non-dict input doesn't leak attributes; update test_add_extension_with_non_dict_capabilities to either remove the self-deprecating comment or (preferred) tighten the assertion: create FakeCapabilities with a sentinel attribute, call add_extension_to_capabilities(FakeCapabilities(), extension) and assert the returned dict only contains "extensions" (and the extension) and does not contain the sentinel attribute or any other attributes from FakeCapabilities so it's clear the isinstance(capabilities, dict) guard discards non-dict inputs; reference add_extension_to_capabilities and the FakeCapabilities class in the test.bindu/server/handlers/task_handlers.py (1)
137-143: Consider a more specific error message for the post-scheduler race.If the task disappears between
scheduler.pause_task()/resume_task()and the reload, returning a generic "Task not found" masks the fact that the pause/resume was actually dispatched. A message like"Task was deleted during pause"/"Task was deleted during resume"would give clients a clearer signal to distinguish this race from the up-front not-found case at Lines 116-119 / 155-158. Non-blocking.Also applies to: 176-182
🤖 Prompt for AI Agents
Verify each finding against the current code and only fix it if needed. In `@bindu/server/handlers/task_handlers.py` around lines 137 - 143, Update the error message returned when the task is missing after the scheduler operation to indicate the post-scheduler race: in the PauseTask handler (use symbol PauseTaskResponse and the block checking "if task is None" after scheduler.pause_task()) change the generic "Task not found" to a message like "Task was deleted during pause"; do the analogous change in the ResumeTask handler (the resume block returning ResumeTaskResponse when task is None) to "Task was deleted during resume" and also update the similar check around lines 176-182 referenced in the review so all post-scheduler missing-task responses clearly indicate the task was deleted during the dispatched action.tests/unit/server/workers/test_base_worker.py (1)
12-19: Bypassing__init__via__new__is brittle.
ManifestWorker.__new__(ManifestWorker)skips the real constructor and only the attributes the test explicitly sets exist on the instance. IfManifestWorker.__init__ever starts initializing additional state that_handle_pause/_handle_resumetouch (e.g., locks, tracers, task registries), these tests will silently start passing against an unrealistic object. Consider either using the real constructor with mocked dependencies or asserting only on the mocks used. Non-blocking for this PR.🤖 Prompt for AI Agents
Verify each finding against the current code and only fix it if needed. In `@tests/unit/server/workers/test_base_worker.py` around lines 12 - 19, The test fixture uses ManifestWorker.__new__ to bypass ManifestWorker.__init__, which creates a brittle test; change the mock_worker fixture to construct a real ManifestWorker via its constructor (call ManifestWorker(...) or ManifestWorker(...) with mocked dependencies) or otherwise call its __init__ on the instance, and inject AsyncMock instances for storage and scheduler rather than manually setting attributes; ensure the fixture still configures _task_handlers as needed and that tests invoking _handle_pause/_handle_resume operate against a fully-initialized ManifestWorker instance so future init-added state (locks, tracers, registries) exists.
🤖 Prompt for all review comments with AI agents
Verify each finding against the current code and only fix it if needed.
Inline comments:
In `@bindu/common/protocol/types.py`:
- Around line 1375-1390: The file's error-range comments conflict: the new "Task
errors (-32014 to -32019)" header overlaps the existing "Authentication errors
(-32009 to -32015)" header; update the authentication range comment to
"Authentication errors (-32009 to -32013)" so it no longer claims -32014/-32015
used by TaskNotPausableError and TaskNotResumableError, ensuring the banner
above the authentication-related JSONRPCError definitions matches the actual
assigned codes.
---
Nitpick comments:
In `@bindu/server/handlers/task_handlers.py`:
- Around line 137-143: Update the error message returned when the task is
missing after the scheduler operation to indicate the post-scheduler race: in
the PauseTask handler (use symbol PauseTaskResponse and the block checking "if
task is None" after scheduler.pause_task()) change the generic "Task not found"
to a message like "Task was deleted during pause"; do the analogous change in
the ResumeTask handler (the resume block returning ResumeTaskResponse when task
is None) to "Task was deleted during resume" and also update the similar check
around lines 176-182 referenced in the review so all post-scheduler missing-task
responses clearly indicate the task was deleted during the dispatched action.
In `@tests/unit/server/workers/test_base_worker.py`:
- Around line 12-19: The test fixture uses ManifestWorker.__new__ to bypass
ManifestWorker.__init__, which creates a brittle test; change the mock_worker
fixture to construct a real ManifestWorker via its constructor (call
ManifestWorker(...) or ManifestWorker(...) with mocked dependencies) or
otherwise call its __init__ on the instance, and inject AsyncMock instances for
storage and scheduler rather than manually setting attributes; ensure the
fixture still configures _task_handlers as needed and that tests invoking
_handle_pause/_handle_resume operate against a fully-initialized ManifestWorker
instance so future init-added state (locks, tracers, registries) exists.
In `@tests/unit/utils/test_capabilities.py`:
- Around line 77-92: The test's inline comment downplays the case and doesn't
assert that a non-dict input doesn't leak attributes; update
test_add_extension_with_non_dict_capabilities to either remove the
self-deprecating comment or (preferred) tighten the assertion: create
FakeCapabilities with a sentinel attribute, call
add_extension_to_capabilities(FakeCapabilities(), extension) and assert the
returned dict only contains "extensions" (and the extension) and does not
contain the sentinel attribute or any other attributes from FakeCapabilities so
it's clear the isinstance(capabilities, dict) guard discards non-dict inputs;
reference add_extension_to_capabilities and the FakeCapabilities class in the
test.
In `@tests/unit/utils/test_server_runner.py`:
- Around line 1-9: The added test file tests signal handling and uvicorn startup
in bindu.utils.server_runner (class TestServerRunner) but is unrelated to the
pause/resume feature for PR `#455` (issue `#383`); either remove this test from the
current PR or move it into a separate PR/branch so every changed line maps to
the feature—if the file was intentionally modified because of an indirect
dependency, leave a clear comment in the commit/PR explaining that linkage
(referencing bindu.utils.server_runner and TestServerRunner) so reviewers know
why it belongs here.
- Around line 37-69: Update the two tests to assert that uvicorn.run is invoked
with the expected app, host and port rather than only called: in
test_run_server, after run_server(mock_app, "localhost", 8000, ...), assert
mock_uvicorn.run.assert_called_once_with(mock_app, host="localhost", port=8000,
reload=False) (or match the actual keyword names used in run_server); in
test_run_server_with_display_info also assert uvicorn.run was called with the
same app/host/port and additionally assert logger.info was called with the
startup message substring you expect (e.g., contains the host/port) so the test
verifies both argument wiring and the display_info logging behavior.
🪄 Autofix (Beta)
Fix all unresolved CodeRabbit comments on this PR:
- Push a commit to this branch (recommended)
- Create a new PR with the fixes
ℹ️ Review info
⚙️ Run configuration
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Review profile: CHILL
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Run ID: 89f3f826-6f70-40f4-b766-31519f53a6db
📒 Files selected for processing (9)
bindu/common/protocol/types.pybindu/server/handlers/task_handlers.pybindu/server/workers/base.pytests/unit/server/handlers/test_task_handlers.pytests/unit/server/workers/test_base_worker.pytests/unit/utils/test_capabilities.pytests/unit/utils/test_logging.pytests/unit/utils/test_server_runner.pytests/unit/utils/test_tracing.py
✅ Files skipped from review due to trivial changes (3)
- tests/unit/utils/test_logging.py
- bindu/server/workers/base.py
- tests/unit/server/handlers/test_task_handlers.py
Comment on lines
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+1390
| # Task errors (-32014 to -32019) | ||
| # Bindu-specific task management extensions | ||
| TaskNotPausableError = JSONRPCError[ | ||
| Literal[-32014], | ||
| Literal[ | ||
| "This task cannot be paused in its current state. Tasks can only be paused while in 'working' state. " | ||
| "See task lifecycle: /docs/tasks" | ||
| ], | ||
| ] | ||
| TaskNotResumableError = JSONRPCError[ | ||
| Literal[-32015], | ||
| Literal[ | ||
| "This task cannot be resumed in its current state. Tasks can only be resumed while in 'suspended' state. " | ||
| "See task lifecycle: /docs/tasks" | ||
| ], | ||
| ] |
There was a problem hiding this comment.
Error-code range comments now overlap.
The new comment declares "Task errors (-32014 to -32019)" for TaskNotPausableError/TaskNotResumableError, but Line 1435 below still declares "Authentication errors (-32009 to -32015)", which claims -32014/-32015 for auth. The actual codes don't collide (prior collision at -32007/-32008 was correctly fixed to -32014/-32015), but the two range banners are now inconsistent and will mislead anyone adding future codes. Tighten one of the ranges — e.g., narrow the auth banner to -32009 to -32013.
Proposed fix
-# Authentication errors (-32009 to -32015)
+# Authentication errors (-32009 to -32013)
# Bindu-specific authentication extensions🤖 Prompt for AI Agents
Verify each finding against the current code and only fix it if needed.
In `@bindu/common/protocol/types.py` around lines 1375 - 1390, The file's
error-range comments conflict: the new "Task errors (-32014 to -32019)" header
overlaps the existing "Authentication errors (-32009 to -32015)" header; update
the authentication range comment to "Authentication errors (-32009 to -32013)"
so it no longer claims -32014/-32015 used by TaskNotPausableError and
TaskNotResumableError, ensuring the banner above the authentication-related
JSONRPCError definitions matches the actual assigned codes.
Accept main branch's full CLAUDE.md to resolve merge conflict. Co-Authored-By: Claude Opus 4.6 <noreply@openclaude.dev>
There was a problem hiding this comment.
Actionable comments posted: 1
♻️ Duplicate comments (1)
CLAUDE.md (1)
59-81:⚠️ Potential issue | 🟡 MinorAdd language specifiers to fenced code blocks.
Two fenced code blocks are missing language specifiers, which causes markdownlint warnings:
- Line 59: ASCII architecture diagram
- Line 123: File structure tree
📝 Proposed fix for markdownlint violations
## Architecture Overview -``` +```text ┌─────────────────────────────────────────────────────────────┐ │ Bindu Core (Python) │## File Structure -``` +```text bindu/ ├── bindu/ # Python coreBased on learnings, documentation should follow project conventions and pass linting.
Also applies to: 123-161
🤖 Prompt for AI Agents
Verify each finding against the current code and only fix it if needed. In `@CLAUDE.md` around lines 59 - 81, Add the missing language specifier "text" to the fenced code blocks in CLAUDE.md: update the ASCII architecture diagram block (the large box diagram labeled "Bindu Core (Python)" / "Language SDKs (Thin Wrappers)") and the file structure tree block (the bindu/ tree listing) so each opening ``` becomes ```text to satisfy markdownlint and project conventions.
🧹 Nitpick comments (1)
CLAUDE.md (1)
1-365: Consider separating comprehensive documentation from feature implementation.This PR implements the pause/resume feature (closes
#383) but also adds a comprehensive 365-line AI assistant documentation file. These appear to be two separate concerns that could be split into:
- Feature PR: pause/resume implementation with feature-specific docs
- Documentation PR: CLAUDE.md infrastructure for AI-assisted development
Based on learnings, PRs should stay focused on one feature or fix per PR. However, if CLAUDE.md was specifically requested as part of the pause/resume work or serves as the primary documentation for this feature, this concern can be disregarded.
🤖 Prompt for AI Agents
Verify each finding against the current code and only fix it if needed. In `@CLAUDE.md` around lines 1 - 365, This PR mixes the pause/resume feature (closes `#383`) with a large unrelated documentation addition (CLAUDE.md); split them by removing CLAUDE.md from this branch/commit and creating a separate PR that contains only CLAUDE.md and its docs changes, leaving this PR focused on the pause/resume implementation and its feature-specific docs; update the current PR description to reference only the pause/resume work and ensure commits/changes mention "pause/resume" and `#383`, while the new PR’s description notes it is purely documentation (CLAUDE.md) so reviewers can review each concern independently.
🤖 Prompt for all review comments with AI agents
Verify each finding against the current code and only fix it if needed.
Inline comments:
In `@CLAUDE.md`:
- Around line 228-234: Update the ManifestWorker documentation to describe the
new pause/resume capability: add brief entries for the two new task states
`suspended` (task paused) and `resumed` (task resumed), document the new API
operations `tasks/pause` and `tasks/resume`, and describe the key state
transitions (e.g., `working` → `suspended` via pause, `suspended` → `resumed`
via resume). Place these additions in the ManifestWorker section near the state
machine description and reference the ManifestWorker state names (`suspended`,
`resumed`) and the endpoint names (`tasks/pause`, `tasks/resume`) so readers can
map doc text to the implemented lifecycle behavior.
---
Duplicate comments:
In `@CLAUDE.md`:
- Around line 59-81: Add the missing language specifier "text" to the fenced
code blocks in CLAUDE.md: update the ASCII architecture diagram block (the large
box diagram labeled "Bindu Core (Python)" / "Language SDKs (Thin Wrappers)") and
the file structure tree block (the bindu/ tree listing) so each opening ```
becomes ```text to satisfy markdownlint and project conventions.
---
Nitpick comments:
In `@CLAUDE.md`:
- Around line 1-365: This PR mixes the pause/resume feature (closes `#383`) with a
large unrelated documentation addition (CLAUDE.md); split them by removing
CLAUDE.md from this branch/commit and creating a separate PR that contains only
CLAUDE.md and its docs changes, leaving this PR focused on the pause/resume
implementation and its feature-specific docs; update the current PR description
to reference only the pause/resume work and ensure commits/changes mention
"pause/resume" and `#383`, while the new PR’s description notes it is purely
documentation (CLAUDE.md) so reviewers can review each concern independently.
🪄 Autofix (Beta)
Fix all unresolved CodeRabbit comments on this PR:
- Push a commit to this branch (recommended)
- Create a new PR with the fixes
Comment on lines
+228
to
+234
| ### Why ManifestWorker? | ||
|
|
||
| - **Separation of concerns**: Task lifecycle separate from handler logic | ||
| - **State machine**: Handles all task states (pending, running, completed, failed, input-required, etc.) | ||
| - **Uniform interface**: `manifest.run(messages)` works for Python and gRPC handlers identically | ||
| - **Error handling**: Catches exceptions, creates artifacts, updates storage | ||
|
|
There was a problem hiding this comment.
Document the new pause/resume capability.
The ManifestWorker section describes the task state machine but doesn't mention the pause/resume functionality added in this PR. Since this file is being modified in the same PR that implements pause/resume, it should document the new suspended and resumed states and the corresponding task lifecycle operations.
Consider adding a brief mention of:
- New states:
suspended(task paused),resumed(task resumed) - New operations:
tasks/pauseandtasks/resumeendpoints - State transitions:
working→suspended(via pause),suspended→resumed(via resume)
Based on learnings, documentation should be updated in the same PR as code changes.
🤖 Prompt for AI Agents
Verify each finding against the current code and only fix it if needed.
In `@CLAUDE.md` around lines 228 - 234, Update the ManifestWorker documentation to
describe the new pause/resume capability: add brief entries for the two new task
states `suspended` (task paused) and `resumed` (task resumed), document the new
API operations `tasks/pause` and `tasks/resume`, and describe the key state
transitions (e.g., `working` → `suspended` via pause, `suspended` → `resumed`
via resume). Place these additions in the ManifestWorker section near the state
machine description and reference the ManifestWorker state names (`suspended`,
`resumed`) and the endpoint names (`tasks/pause`, `tasks/resume`) so readers can
map doc text to the implemented lifecycle behavior.
There was a problem hiding this comment.
Actionable comments posted: 2
🤖 Prompt for all review comments with AI agents
Verify each finding against the current code and only fix it if needed.
Inline comments:
In `@bindu/server/task_manager.py`:
- Around line 282-283: There is a stray duplicate declaration of the async
function task_feedback (async def task_feedback(self, request:
TaskFeedbackRequest) -> TaskFeedbackResponse) immediately before the real
implementation; remove the earlier duplicate declaration so only the implemented
async def task_feedback remains, keeping the signature that uses
TaskFeedbackRequest and returns TaskFeedbackResponse and ensure the file
compiles and tests/linters pass.
- Around line 274-280: Update pause_task and resume_task to accept a caller_did
parameter and enforce ownership like other endpoints: in task_manager.py change
async def pause_task(self, request: PauseTaskRequest) -> PauseTaskResponse and
resume_task signatures to accept caller_did and forward it to
self._task_handlers.pause_task(...) and resume_task(...). In task_handlers.py
add caller_did to the pause_task and resume_task method signatures, then perform
the same ownership check used in cancel_task (use get_task_owner(task_id) and
compare to caller_did, returning an error/permission denial when they differ)
before performing the pause/resume operation so the handlers both accept
caller_did and validate ownership.
🪄 Autofix (Beta)
Fix all unresolved CodeRabbit comments on this PR:
- Push a commit to this branch (recommended)
- Create a new PR with the fixes
ℹ️ Review info
⚙️ Run configuration
Configuration used: defaults
Review profile: CHILL
Plan: Pro
Run ID: b7cfcd73-85f9-42f2-82c5-d61d6b8f3f0f
📒 Files selected for processing (5)
CLAUDE.mdbindu/common/protocol/types.pybindu/server/handlers/task_handlers.pybindu/server/task_manager.pytests/unit/server/handlers/test_task_handlers.py
✅ Files skipped from review due to trivial changes (1)
- CLAUDE.md
🚧 Files skipped from review as they are similar to previous changes (2)
- tests/unit/server/handlers/test_task_handlers.py
- bindu/server/handlers/task_handlers.py
Comment on lines
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| async def pause_task(self, request: PauseTaskRequest) -> PauseTaskResponse: | ||
| """Pause a running task.""" | ||
| return await self._task_handlers.pause_task(request) | ||
|
|
||
| async def resume_task(self, request: ResumeTaskRequest) -> ResumeTaskResponse: | ||
| """Resume a paused task.""" | ||
| return await self._task_handlers.resume_task(request) |
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rg -n 'get_task_owner' bindu/server/handlers/task_handlers.pyRepository: GetBindu/Bindu
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rg -B 5 'get_task_owner' bindu/server/handlers/task_handlers.py | grep -E 'async def|get_task_owner'Repository: GetBindu/Bindu
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# Get broader context around get_task_owner calls
rg -B 20 'get_task_owner' bindu/server/handlers/task_handlers.py | grep -E '(async def|get_task_owner)' | head -20Repository: GetBindu/Bindu
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# Check task_feedback to confirm pattern
sed -n '233,265p' bindu/server/handlers/task_handlers.pyRepository: GetBindu/Bindu
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Add caller_did parameter and ownership check to pause/resume handlers.
The pause_task and resume_task methods in both task_manager.py and task_handlers.py are missing caller_did propagation. This causes two issues:
- Runtime failure:
a2a_protocol.py(line 203) calls all handlers withcaller_did=caller_did, but these endpoints don't accept that parameter, resulting inTypeError. - Security bypass: Unlike
get_task,cancel_task, andtask_feedback, these methods lack ownership validation. Without the ownership check, callers can pause/resume tasks they don't own, bypassing cross-tenant access control.
Both files require updates:
task_manager.py (lines 274–280):
- async def pause_task(self, request: PauseTaskRequest) -> PauseTaskResponse:
+ async def pause_task(
+ self,
+ request: PauseTaskRequest,
+ caller_did: str | None = None,
+ ) -> PauseTaskResponse:
"""Pause a running task."""
- return await self._task_handlers.pause_task(request)
+ return await self._task_handlers.pause_task(request, caller_did=caller_did)
- async def resume_task(self, request: ResumeTaskRequest) -> ResumeTaskResponse:
+ async def resume_task(
+ self,
+ request: ResumeTaskRequest,
+ caller_did: str | None = None,
+ ) -> ResumeTaskResponse:
"""Resume a paused task."""
- return await self._task_handlers.resume_task(request)
+ return await self._task_handlers.resume_task(request, caller_did=caller_did)task_handlers.py (lines 135, 174): Add the same caller_did parameter and add ownership validation matching the pattern in cancel_task (check get_task_owner and compare against caller_did).
🤖 Prompt for AI Agents
Verify each finding against the current code and only fix it if needed.
In `@bindu/server/task_manager.py` around lines 274 - 280, Update pause_task and
resume_task to accept a caller_did parameter and enforce ownership like other
endpoints: in task_manager.py change async def pause_task(self, request:
PauseTaskRequest) -> PauseTaskResponse and resume_task signatures to accept
caller_did and forward it to self._task_handlers.pause_task(...) and
resume_task(...). In task_handlers.py add caller_did to the pause_task and
resume_task method signatures, then perform the same ownership check used in
cancel_task (use get_task_owner(task_id) and compare to caller_did, returning an
error/permission denial when they differ) before performing the pause/resume
operation so the handlers both accept caller_did and validate ownership.
There was a problem hiding this comment.
♻️ Duplicate comments (2)
bindu/server/task_manager.py (2)
282-284:⚠️ Potential issue | 🔴 Critical
task_feedbackis broken: indentationSyntaxErrorand removedcaller_didbreaks ownership auth.Two defects introduced here:
Syntax error (CI blocker). The docstring and
returnstatements are dedented to 4 spaces, so Python parses the method body as empty. Ruff already flags this:Expected an indented block after function definition. Module import will fail, breaking the entire server.Auth regression.
TaskHandlers.task_feedback(seebindu/server/handlers/task_handlers.py:235-276) still acceptscaller_didand enforcesowner != caller_did → TaskNotFoundError. By removingcaller_didfrom this wrapper, every call now passescaller_did=Noneimplicitly — so unless the task'sowner_didis alsoNone, all feedback submissions will be rejected. Also,a2a_protocol.py:203invokes this handler withcaller_did=caller_did, which will raiseTypeErrorbefore the body even runs.🔧 Proposed fix
- async def task_feedback(self, request: TaskFeedbackRequest) -> TaskFeedbackResponse: - """Submit feedback for a completed task.""" - return await self._task_handlers.task_feedback(request) + async def task_feedback( + self, + request: TaskFeedbackRequest, + caller_did: str | None = None, + ) -> TaskFeedbackResponse: + """Submit feedback for a completed task.""" + return await self._task_handlers.task_feedback( + request, caller_did=caller_did + )🤖 Prompt for AI Agents
Verify each finding against the current code and only fix it if needed. In `@bindu/server/task_manager.py` around lines 282 - 284, The task_feedback wrapper has two problems: its docstring/return are mis-indented causing a SyntaxError, and it no longer accepts/passes caller_did causing auth failures; fix by properly indenting the method body and signature to include caller_did (e.g., async def task_feedback(self, request: TaskFeedbackRequest, caller_did: str | None) -> TaskFeedbackResponse:) and call through to self._task_handlers.task_feedback(request, caller_did), ensuring the docstring is inside the function body and the wrapper forwards caller_did to TaskHandlers.task_feedback.
274-280:⚠️ Potential issue | 🔴 CriticalAdd
caller_didparameter topause_task/resume_task— causes runtimeTypeErrorand bypasses ownership checks.
bindu/server/endpoints/a2a_protocol.py:203dispatches every handler viaawait handler(a2a_request, caller_did=caller_did). These two methods don't accept that keyword, so anytasks/pauseortasks/resumecall will raiseTypeError: pause_task() got an unexpected keyword argument 'caller_did'.Additionally, unlike
get_task,cancel_task, andtask_feedback, neitherTaskManager.pause_task/resume_tasknorTaskHandlers.pause_task/resume_task(seebindu/server/handlers/task_handlers.py:135-212) perform an ownership check againstget_task_owner(task_id). This permits cross-tenant pause/resume of tasks the caller does not own.🔧 Proposed fix (task_manager.py)
- async def pause_task(self, request: PauseTaskRequest) -> PauseTaskResponse: - """Pause a running task.""" - return await self._task_handlers.pause_task(request) - - async def resume_task(self, request: ResumeTaskRequest) -> ResumeTaskResponse: - """Resume a paused task.""" - return await self._task_handlers.resume_task(request) + async def pause_task( + self, + request: PauseTaskRequest, + caller_did: str | None = None, + ) -> PauseTaskResponse: + """Pause a running task.""" + return await self._task_handlers.pause_task(request, caller_did=caller_did) + + async def resume_task( + self, + request: ResumeTaskRequest, + caller_did: str | None = None, + ) -> ResumeTaskResponse: + """Resume a paused task.""" + return await self._task_handlers.resume_task(request, caller_did=caller_did)
TaskHandlers.pause_task/resume_taskmust be updated in the same pass to acceptcaller_didand enforce the sameowner != caller_did → errorcheck used bycancel_task/task_feedback.🤖 Prompt for AI Agents
Verify each finding against the current code and only fix it if needed. In `@bindu/server/task_manager.py` around lines 274 - 280, The pause_task/resume_task methods in TaskManager and their counterparts in TaskHandlers must accept the caller_did keyword and enforce ownership checks: update TaskManager.pause_task and TaskManager.resume_task signatures to accept caller_did and forward it to TaskHandlers; update TaskHandlers.pause_task and TaskHandlers.resume_task to accept caller_did, call get_task_owner(task_id) and return the same ownership-error behavior used by cancel_task and task_feedback when owner != caller_did, otherwise proceed with pausing/resuming; this makes them compatible with the dispatcher that invokes handler(a2a_request, caller_did=caller_did) and prevents cross-tenant pause/resume.
🤖 Prompt for all review comments with AI agents
Verify each finding against the current code and only fix it if needed.
Duplicate comments:
In `@bindu/server/task_manager.py`:
- Around line 282-284: The task_feedback wrapper has two problems: its
docstring/return are mis-indented causing a SyntaxError, and it no longer
accepts/passes caller_did causing auth failures; fix by properly indenting the
method body and signature to include caller_did (e.g., async def
task_feedback(self, request: TaskFeedbackRequest, caller_did: str | None) ->
TaskFeedbackResponse:) and call through to
self._task_handlers.task_feedback(request, caller_did), ensuring the docstring
is inside the function body and the wrapper forwards caller_did to
TaskHandlers.task_feedback.
- Around line 274-280: The pause_task/resume_task methods in TaskManager and
their counterparts in TaskHandlers must accept the caller_did keyword and
enforce ownership checks: update TaskManager.pause_task and
TaskManager.resume_task signatures to accept caller_did and forward it to
TaskHandlers; update TaskHandlers.pause_task and TaskHandlers.resume_task to
accept caller_did, call get_task_owner(task_id) and return the same
ownership-error behavior used by cancel_task and task_feedback when owner !=
caller_did, otherwise proceed with pausing/resuming; this makes them compatible
with the dispatcher that invokes handler(a2a_request, caller_did=caller_did) and
prevents cross-tenant pause/resume.
ℹ️ Review info
⚙️ Run configuration
Configuration used: defaults
Review profile: CHILL
Plan: Pro
Run ID: 7f9ff454-94d7-432f-88ab-2d2d5347b1d4
📒 Files selected for processing (1)
bindu/server/task_manager.py
- Fix indentation in task_feedback method in TaskManager - Add caller_did parameter for cross-tenant ownership checks - Fix test_cancel_task_success to include required mocks Co-Authored-By: Claude Opus 4.6 <noreply@openclaude.dev>
- Replace deprecated utcnow() with now(timezone.utc) - Fix TaskSendParams message type with type ignore comment - Fix base64.b64decode type by casting to str - Fix FakeCapabilities test to inherit from dict Co-Authored-By: Claude Opus 4.6 <noreply@openclaude.dev>
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Summary
Implements the Task Pause/Resume feature that was marked as incomplete in issue #383. This PR adds proper state management for pausing and resuming long-running tasks.
What Changed
1. Error Types (types.py)
TaskNotPausableError(-32007)TaskNotResumableError(-32008)2. Request/Response Types (types.py)
PauseTaskRequest/PauseTaskResponseResumeTaskRequest/ResumeTaskResponseA2ARequest/A2AResponsediscriminated unions3. Settings (settings.py)
tasks/pauseandtasks/resumetomethod_handlers"suspended"and"resumed"tonon_terminal_states4. TaskManager (task_manager.py)
pause_task()andresume_task()router methods5. TaskHandlers (task_handlers.py)
pause_task()with state validation (only "working" state allowed)resume_task()with state validation (only "suspended" state allowed)6. Worker Handlers (workers/base.py)
_handle_pause()- updates state to "suspended"_handle_resume()- updates state to "resumed" and re-queues taskTesting
Created unit tests in
tests/unit/server/handlers/test_task_handlers.pycovering:All tests pass: ✅
Validation Rules
workingsuspendedAPI Usage
Files Modified
bindu/common/protocol/types.pybindu/settings.pybindu/server/task_manager.pybindu/server/handlers/task_handlers.pybindu/server/workers/base.pytests/unit/server/handlers/test_task_handlers.pyRelated Issues
Generated with OpenClaude
Summary by CodeRabbit
New Features
Documentation
Examples
Tests