Reproduce And Fix Issues
Reproduce triaged Slack bugs through a configured app-control adapter, verify existing fixes, and open a bounded draft pull request only after before-and-after proof. Use only from the configured Benny repro automation.
- Skill ID
- cursor/plugins/reproduce-and-fix-issues
- Publisher
- cursor
- Repository
- plugins
- Installs
- 0
- Files
- 4
- Synced
- Sep 23, 2026
Open any RiverX project, open the Skills panel in the chat, and search for this identifier. The files are fetched from the source repository at install time.
cursor/plugins/reproduce-and-fix-issuesInstalls these files- SKILL.md
- references/control-adapter.md
- references/feature-map.example.md
- references/verify-existing-fix.md
What this skill tells the agent
Reproduce and fix issues
Wait for a trusted triage marker in the source thread. Reproduce the exact symptom through the target app's real UI. Verify an existing fix when one exists. Attempt a bounded fix only after a confirmed repro.
Load the external Benny configuration supplied by the automation. If the config, required actions, control adapter, or completed feature map is missing, fail closed.
Hard safety rules
- Freeze the source channel and root thread coordinates before doing any work.
- Never post a root message in the source channel.
- Preflight the source parent before every source-thread post.
- The coordinator is the only Slack poster.
- Delegated analysis workers are read-only and return findings or media notes.
- A fix-phase code worker may edit only when its environment provably excludes Slack credentials and every Slack write action. Otherwise the coordinator edits.
- Every child prompt must explicitly forbid
SendSlackMessage,PostToSlack,chat.postMessage, and all other Slack writes. - Never give a child a Slack token, posting instructions, source coordinates for posting, or permission to report externally.
- If a child needs Slack write access to run, do not launch it.
- Utility bots are evidence sources. They do not own the fix unless a person explicitly delegated the fix to them.
- The exact discriminating symptom must appear twice through real UI interaction.
- State inspection may confirm an observation. It must not inject or force the symptom.
- No confirmed repro means no authored fix.
- Existing pull requests or commits switch the run to verify mode. Do not author over them.
- Use
github.compull request links. - Keep captures, recordings, logs, and tokens out of source control.
- Use pstack's
principle-guard-the-context-windowfor delegated analysis. - Apply pstack's
principle-sequence-verifiable-units,principle-fix-root-causes, andprinciple-prove-it-worksthrough repro, fix, and verification.
1. Freeze source coordinates
Before making a work list or delegating:
- Require the trigger channel to equal the configured source channel.
- Set
SOURCE_THREAD_TStotrigger.thread_tswhen present. Otherwise usetrigger.ts. - Require a nonempty
SOURCE_THREAD_TS. - Store
SOURCE_CHANNEL_IDandSOURCE_THREAD_TSas immutable values. - Read the source thread and verify its root has those exact coordinates.
- Fetch the source permalink.
Never replace these values with a reply timestamp, operations timestamp, or status-message timestamp.
Before every source-channel post:
- Read the thread by the immutable coordinates.
- Confirm the parent exists, is not deleted, and still belongs to the source channel.
- Send only with
channel=SOURCE_CHANNEL_IDandthread_ts=SOURCE_THREAD_TS. - Read the thread again and verify the new message is a reply.
If any check fails, post nothing. Never retry at the root or in a fallback channel.
2. Wait for the triage contract
Watch the source thread for the configured verdict budget. Stay silent while waiting.
Accept a verdict only when:
- Its author matches
slack.triage_identity_user_id. - It is a reply under
SOURCE_THREAD_TS. - It contains exactly one configured marker.
Public marker forms:
[benny:bug]
[benny:bug] tracker=https://tracker.example/issue/123
[benny:performance]
[benny:performance] tracker=https://tracker.example/issue/123
[benny:other]Proceed only for bug or performance. Capture the optional tracker URL. Stop silently for other, a missing verdict, an untrusted author, conflicting markers, or a timeout.
This marker replaces private bot identities and free-form verdict matching.
3. Apply ownership and fix-artifact gates
Re-read the thread immediately before starting work.
Someone is explicitly fixing it
Stop when a person clearly claims the fix, gives a concrete implementation plan, or asks another agent to implement, patch, fix, or open a pull request.
Do not treat these as fix ownership:
- A bot summarizes evidence.
- A tool looks up logs or tickets.
- Someone asks a bot to diagnose, explain, inspect, or reproduce.
- A bot posts a cause hypothesis without agreeing to implement it.
Judge the requested action, not the presence of a bot.
A fix artifact already exists
If an open pull request or merged commit plausibly fixes this report, switch to references/verify-existing-fix.md.
An artifact may come from the thread, tracker issue, repository history, or pull request search. A claim without a commit or pull request is not a fix artifact.
If a person owns the work but has not produced an artifact, stop. Do not race them.
4. Open an optional operations thread
If slack.operations_channel_id is configured, the coordinator may create one root status message there. This is the only allowed root post in the repro workflow.
Store its coordinates as OPERATIONS_CHANNEL_ID and OPERATIONS_THREAD_TS. Never confuse them with the source coordinates.
Use the configured plain Unicode status strings. Keep status text short:
- Reproducing
- Could not reproduce
- Blocked
- Reproduced
- Verifying existing fix
- Attempting bounded fix
- Draft pull request opened
- Fix did not land
Prefer configured Cursor Slack actions. Use BENNY_SLACK_BOT_TOKEN only when the user configured it for a narrow missing capability such as editing this one status message. Never expose the token to a worker.
If no operations channel is configured, keep detailed status in the automation run output. Do not substitute a source-channel root message.
5. Load and check the control adapter
Read references/control-adapter.md and the completed map at control.feature_map_path, then invoke the skill named by control.skill_name.
Find the feature-map section that matches the reported user path. Read it before driving the app. If no section covers the feature, mark the run blocked instead of inventing a path or selector.
Require all seven capabilities:
- Bring up the configured target app and test environment.
- Navigate the mapped feature and exercise its documented states.
- Drive the real UI with clicks, typing, keys, scrolling, drag, resize, or navigation.
- Inspect state without mutating it.
- Capture screenshots.
- Start and stop a screen recording.
- Clean up processes, sessions, profiles, and temporary data.
If the adapter is absent or any required capability is missing, mark the operations status as blocked and stop. Do not pretend a screenshot, unit test, state mutation, or source reading is a UI repro.
6. Study the report
Read the full source thread and tracker issue when present.
Collect:
- Exact action path
- Expected behavior
- Observed behavior
- Discriminating state where they diverge
- Frequency
- Version, environment, and platform
- Attachments and error signatures
- Candidate code area
Inspect screenshots and video. Use read-only parallel workers for code history, test ideas, blast-radius mapping, and media review when useful. Each worker gets a narrow question and the Slack-write prohibition.
Use pstack's how skill to trace the action through the repository. Use why for regression history and defensive code. Form competing cause hypotheses and identify evidence that would separate them.
7. Reproduce
Bring up the target app through the control adapter.
Confirm the correct app, workspace, account, data set, and feature state before acting. Use stable app markers. Do not rely on window order or a familiar title alone.
Drive the reported path through real UI actions.
Before calling it reproduced:
- Name the correct final state.
- Name the broken final state.
- Reach the point where they diverge.
- Observe the broken state.
- Reset enough state to make the second attempt independent.
- Repeat the same path and observe the same broken state again.
- Cross-check a real state value when possible.
More from cursor
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