Use when reviewing tests or test changes in a diff, pull request, or merge request. Triggers on assessing test quality, spotting test anti-patterns, or evaluating whether an assertion earns its place.
Generate the periodic "unsolved Checkmk check crashes on 2.4+" Slack rollup, grouped by component owner. Composes the crash-report and component-owners skills and emits Slack-ready plain text (no markdown).
Create a Jira ticket in CMK with component, team, and epic matched from compass and roadmap data
Fetch and display a Jira ticket's description, comments, attachments, and linked tickets
Interview the user relentlessly about a plan or design until reaching shared understanding, resolving each branch of the decision tree. Use when user wants to stress-test a plan, get grilled on their design, or mentions "grill me".
Interacts with Gerrit code review to list changes and improve them
| name | crash-report |
| description | Queries and reads crash reports from crash.checkmk.com |
You are a specialized agent that queries and analyzes crash reports from crash.checkmk.com. The crash reporting service collects crash reports from Checkmk instances worldwide.
CRITICAL: All crash report data contains customer-sensitive information (IP addresses, email addresses, hostnames). The helper script automatically anonymizes all data before output. NEVER attempt to de-anonymize or ask about original values.
The skill authenticates with crash.checkmk.com using Google OAuth (preferred) or a legacy static token.
Run the authentication script — it opens a browser for Google Sign-In:
PYTHONPATH=.github/skills .venv/bin/python -m crash_report.authenticate
No setup required — the server handles the Google OAuth flow. This caches a temporary bearer token at ~/.cache/cmk-crash-reporting/token.json (valid for 1 hour). The token is automatically used by all subsequent API calls. Re-run with --force to re-authenticate before expiry.
Set the CRASH_REPORTING_TOKEN environment variable:
export CRASH_REPORTING_TOKEN='<token>'
The script checks for authentication in this order:
authenticate.py)CRASH_REPORTING_TOKEN env var (legacy)If neither is available, the script will print instructions for how to authenticate.
The user provides a natural language request or a direct command. Examples:
/crash-report popular — show popular unsolved crash groups/crash-report search --unsolved --type check --min-crashes 5 — search with filters/crash-report show <crash_id> — show individual crash report/crash-report group <group_id> — show crash group details/crash-report stats — show aggregate statistics/crash-report local — list crash reports from local OMD sites/crash-report auto-fix popular --limit 3 — auto-fix top 3 popular crash groups/crash-report auto-fix search --type check --unsolved --limit 5 — auto-fix top 5 unsolved check crashes/crash-report auto-fix --dry-run popular --limit 3 — analyze and fix but don't commit/push/crash-report resolved --since 30d — list crash groups fixed in the last 30 days/crash-report resolve <group_id> --versions 2.4.0p8,2.3.0p25 — mark a crash group as resolved on the server (versions required)Translate the user's request into one of these commands:
| User intent | Command |
|---|---|
| "Show me popular crashes" | popular |
| "What crashes happened last week?" | search --since 7d |
| "Show check crashes with >5 reports" | search --type check --min-crashes 5 |
| "Unsolved GUI crashes for 2.4.0" | search --type gui --unsolved --version 2.4.0 |
| "Crashes only on enterprise edition" | search --edition cee |
| "Crashes from acme.com customers" | search --contact-mail acme.com |
| "Crashes mentioning KeyError" | search --exc-value KeyError |
| "Crashes in views.py:render_view" | search --traceback-location views.py:render_view |
| "Show crash report ABC-123-..." | show <crash_id> |
| "Show crash group 42" | group 42 |
| "Overall crash statistics" | stats |
| "Auto-fix popular crashes" | auto-fix popular --limit 5 |
| "Fix all unsolved check crashes" | auto-fix search --type check --unsolved |
| "What crashes are on my local site?" | local |
| "Show local GUI crashes" | local --type gui |
| "What crash groups did we fix?" | resolved --since 30d |
| "Show resolved crashes this quarter" | resolved --since 90d |
| "Resolve group 42 in 2.4.0p8" | resolve 42 --versions 2.4.0p8 |
| "Unresolve group 42" | resolve 42 --unresolve |
Before running any query, check if a cached token exists and is valid:
PYTHONPATH=.github/skills .venv/bin/python -m crash_report check-auth
If the token is missing or expired (non-zero exit), run the authenticate command first:
PYTHONPATH=.github/skills .venv/bin/python -m crash_report.authenticate
This avoids failed API calls due to expired/missing credentials.
PYTHONPATH=.github/skills .venv/bin/python -m crash_report <command> [options]
Available commands:
# Search crash groups with filters
PYTHONPATH=.github/skills .venv/bin/python -m crash_report search \
[--since DATE] [--min-crashes N] [--type TYPE] [--unsolved] [--version VER] \
[--edition EDITION] [--contact-mail SUBSTR] [--exc-value SUBSTR] \
[--traceback-location SUBSTR] [--limit N]
# Filters semantics:
# --type, --edition exact match
# --version prefix match on cmk_version (e.g. '2.4' matches '2.4.0p3')
# --contact-mail substring match on contact_mail
# --exc-value substring match on exception message
# --traceback-location substring match on '<filename>:<funcname>' of the
# innermost traceback frame (e.g. 'views.py:render_view')
# These per-report filters can be combined freely.
# Popular unsolved crash groups (>10 crashes)
PYTHONPATH=.github/skills .venv/bin/python -m crash_report popular [--since DATE] [--limit N]
# Aggregate crash statistics
PYTHONPATH=.github/skills .venv/bin/python -m crash_report stats [--since DATE]
# Individual crash report (anonymized)
PYTHONPATH=.github/skills .venv/bin/python -m crash_report show <crash_id>
# Crash group detail (anonymized)
PYTHONPATH=.github/skills .venv/bin/python -m crash_report group <group_id>
# List crash reports from local OMD sites
PYTHONPATH=.github/skills .venv/bin/python -m crash_report local [--type TYPE]
# Mark a crash group as resolved (JWT auth required; legacy token rejected)
PYTHONPATH=.github/skills .venv/bin/python -m crash_report resolve <group_id> \
--versions 2.4.0p8,2.3.0p25
PYTHONPATH=.github/skills .venv/bin/python -m crash_report resolve <group_id> --unresolve
The resolve command marks the group is_solved=true server-side, records the
authenticated user as solved_by, and stores the caller-supplied
solved_versions verbatim. --versions is required when resolving — the server
does not guess the fix versions. Use --unresolve to reverse a prior resolve
(no --versions needed).
Date arguments accept:
2025-01-1530d (last 30 days), 7d (last week)Present the output to the user in a readable format. The script outputs markdown tables and structured text.
After presenting results, the next steps depend on what was shown:
From a search/popular listing or statistics:
From a crash group:
From an individual crash report (show):
/jira-plan-ticket.After showing a crash report, automatically analyze it:
Extract traceback locations. Parse the exc_traceback for file paths and function names. Traceback paths are Checkmk source paths — they are NOT anonymized and can be used directly.
Find the code in the local codebase. Use Grep/Read to locate the crashing function. Since the crash report version may differ from the local master branch (line numbers shift), search by function name and surrounding context, not by exact line number. Example: if the traceback shows File "cmk/gui/views.py", line 412, in render_view, search for def render_view in cmk/gui/views.py.
For check/section crash types: The details field contains host, service, and check_type/section_name. Use these to locate the specific check plugin code (typically under cmk/plugins/). If agent_output is available (local crashes), show the relevant section.
Present a summary:
Offer next steps: Ask the user if they want to:
Create a minimal xfail unit test that reproduces the crashing call from the traceback.
Rules:
Test only the crashing call. The test targets the specific function and call from the traceback that raised the exception — nothing more. Do not test the full workflow or surrounding logic.
Mark as @pytest.mark.xfail(strict=True). The test documents the known bug. It should fail (proving the bug exists) and will be unmarked once the fix is applied. strict=True ensures CI fails if the test unexpectedly passes without a fix. Use reason="Crash report <crash_id>: <ExcType>" in the xfail marker.
Reconstruct minimal inputs. Use the crash report's local_vars, details, agent_output, and exception context to construct the minimal arguments that trigger the crash. Use anonymized/synthetic values — never embed real customer data.
Place in the correct test directory. Mirror the source path under tests/unit/. Example:
cmk/gui/views.py → Test: tests/unit/cmk/gui/test_views.pycmk/plugins/collection/agent_based/foo.py → Test: tests/unit/cmk/plugins/collection/agent_based/test_foo.pyFollow existing test conventions. Before writing the test, read 1-2 existing test files in the same directory to match:
conftest.py)test_<function_name>_<scenario>)Run the test using the /bazel skill to verify it fails as expected (xfail).
Commit the test immediately as the first commit. This commit contains only the xfail test file — no fix, no werk. Commit message: Add xfail test for crash group <group_id>
Example test structure:
@pytest.mark.xfail(strict=True, reason="Crash report <id>: ValueError in parse_output")
def test_parse_output_crashes_on_empty_input() -> None:
# Minimal reproduction from crash report local_vars/details
result = parse_output("") # triggers ValueError from traceback
Run before the fix commit in both the manual workflow (Step 7) and the auto-fix pipeline (between (h) Werk and (j) Commit 2). In auto-fix --dry-run mode: skip this step entirely.
6.5.a. Lookup existing link.
Re-use the group <group_id> output already fetched in Step 5. If the Jira: line is present and non-empty, record the key (e.g. CMK-12345) and jump to 6.5.f. Otherwise continue with 6.5.b.
6.5.b. Determine component. Collect the Checkmk-relative source paths from the crash traceback and ask the component owners tool:
cmk-components owners-for <path1> <path2> ...
Pick the most frequent component across the paths. If cmk-components is not installed or returns nothing, fall back to the compass-based match used by jira-create-ticket (run .venv/bin/python .github/skills/jira-create-ticket/create_ticket.py --guess --summary "<drafted summary>" and pick the closest match).
6.5.c. Gather assignee + team. Auto-detect defaults:
Assignee — the currently authenticated Jira user:
.venv/bin/python -c 'import os; from jira import JIRA; \
j=JIRA(server="https://jira.lan.tribe29.com", token_auth=os.environ["JIRA_API_TOKEN"]); \
print(j.myself()["name"])'
Team — the first team listed by compass for the component chosen in 6.5.b.
Always use AskUserQuestion to confirm / override both values — never commit these silently.
6.5.d. Create the ticket. Chain to the existing helper:
.venv/bin/python .github/skills/jira-create-ticket/create_ticket.py \
--summary "Fix crash in <component> (<exc_type>)" \
--description "<Bug template: crash-group URL + anonymized traceback + observed/expected>" \
--issue-type Bug \
--component "<component>" \
--developer-team "<team>"
Parse the Created: CMK-XXXXX — <url> line from stdout to capture the new key.
6.5.e. Wire up assignee, story points, sprint, and "In Progress".
Run a single inline python block (no file created) that uses the jira library to apply four updates. Wrap each call in its own try/except — one failure must not block the others. On failure, print WARN: <field> update failed for <key>: <err> and continue. Never abort the commit because of a Jira wire-up failure.
.venv/bin/python - <<'PY'
import os
from jira import JIRA
KEY = "<CMK-XXXXX>"
ASSIGNEE = "<assignee-username>"
TEAM = "<developer-team>"
STORY_POINTS_FIELD = "customfield_10106"
j = JIRA(server="https://jira.lan.tribe29.com", token_auth=os.environ["JIRA_API_TOKEN"])
try:
j.assign_issue(KEY, ASSIGNEE)
except Exception as e:
print(f"WARN: assignee update failed for {KEY}: {e}")
try:
j.issue(KEY).update(fields={STORY_POINTS_FIELD: 2})
except Exception as e:
print(f"WARN: story-points update failed for {KEY}: {e}")
try:
boards = j.boards(name=TEAM)
sprints = j.sprints(boards[0].id, state="active")
j.add_issues_to_sprint(sprints[0].id, [KEY])
except Exception as e:
print(f"WARN: sprint update failed for {KEY}: {e}")
try:
tid = next(t["id"] for t in j.transitions(KEY) if t["name"] == "In Progress")
j.transition_issue(KEY, tid)
except Exception as e:
print(f"WARN: transition update failed for {KEY}: {e}")
PY
6.5.f. Record the ticket for the commit trailer.
Remember the Jira key — it will be added as a Jira: trailer on the fix commit (see Step 7 / auto-fix Commit 2).
After the explain step and the unit test commit, implement the fix:
Minimal change only. Fix the specific crash — do not refactor surrounding code, add unrelated error handling, or "improve" nearby logic.
No inline comments in source code. Do not add # ... explanatory comments in the edited source file. The commit message, werk, and test (which may have comments) carry the explanation. Inline comments in test files are fine and encouraged when they describe the scenario being reproduced.
Remove the @pytest.mark.xfail(strict=True, ...) marker from the test created in Step 6 so the test now asserts the correct behavior. Update the test assertion if the fix changes the expected output.
Run tests and lint using the /bazel skill to verify the fix passes.
Create a werk (changelog entry) via /werk. Write it from the user's perspective (see "Werk wording" below).
Run Step 6.5 (Jira Ticket) to look up or create the tracking ticket before committing. Capture the resulting CMK-XXXXX key for the commit trailer.
Create the second commit containing the fix, the unmarked test, and the werk. This is the only content in this commit — the xfail test was already committed in Step 6. Use Crash-Group-ID: and Jira: trailers in the commit body:
<werk_id>: Fix crash in <component> (<crash_type>)
Crash-Group-ID: <group_id>
Jira: CMK-XXXXX
Werks are read by end users and admins, not by Checkmk developers. Write from the reader's point of view: what they saw, when, and what is now different. Avoid implementation jargon.
Do:
Don't:
value_store, duration_per_status, ps_raw, _Levels) — these mean nothing to users.Title:
mem_win: don't crash on legacy Windows memory rule configuration.mem_win: survive legacy tuple level configuration uses the internal term "tuple".Example (good):
huawei_wlc_aps: tolerate access points with a missing radio row
If a Huawei WLC reported fewer radio entries than access points (e.g. an
AP with only a 2.4 GHz radio), the `AP <n> Status` service went to UNKNOWN
with `IndexError: list index out of range`. The check now skips APs whose
radio data is incomplete and still reports the other APs.
Example (bad — implementation-heavy):
huawei_wlc_aps: skip APs with missing radio rows
The section parser crashed with IndexError: list index out of range when
aps_info2 had fewer radio rows than aps_info1. The loop now breaks early
when 2*idx+1 >= len(aps_info2).
When the user invokes auto-fix, the agent runs a fully automated pipeline that processes crash groups end-to-end without interactive prompts. The syntax is:
auto-fix [--dry-run] [popular|search ...] [--limit N]
The arguments after auto-fix are passed directly to the popular or search command. If --limit is not specified, default to --limit 5.
--dry-run mode: When --dry-run is specified, the agent runs the full analysis pipeline (fetch, analyze, create test, fix, run tests) but stops before creating a werk, committing, or pushing. Each group's branch is left with uncommitted changes so the user can review. The summary table uses status "Dry run: fix ready" or "Dry run: fix failed" instead of "Pushed".
Get crash groups. Run the user's query (e.g. popular --limit 3 or search --type check --unsolved --limit 5) to obtain the list of crash groups.
For each crash group, process sequentially:
a. Duplicate check. Before starting work, check if this crash group has already been addressed:
git branch --list '*crash-group-<group_id>'git branch -r --list '*crash-group-<group_id>'git log --all --oneline --grep='crash-group-<group_id>\|Crash-Group-ID: <group_id>'If any match is found, skip this group with status "Skipped: existing branch/change found" and continue to the next group.
b. Branch. Create a dedicated branch:
git checkout master && git checkout -b sandbox/<username>/master/crash-group-<group_id>
Where <username> is derived from git config user.name (lowercase, spaces replaced with hyphens).
c. Fetch details. Run group <group_id> to get the group info. Pick the most recent crash ID from the group, then run show <crash_id> to get the full crash report.
d. Analyze. Execute Step 5 (Explain the Issue) silently — do not prompt the user for next steps.
e. Unit test. Execute Step 6 (Create Unit Test) — create an xfail(strict=True) test reproducing the crash.
f. Commit 1 (test only). Stage and commit only the xfail test file:
Add xfail test for crash group <group_id>
g. Fix. Execute Step 7 (Fix the Issue) — implement the fix (no inline comments in source; test comments fine), remove xfail(strict=True), run tests and lint via /bazel.
h. Werk. Invoke the /werk skill to create the werk with class fix, level 1, and the appropriate component inferred from the crash type and file path. Do not write to .werks/ or edit .werks/first_free directly — the /werk skill manages werk IDs and metadata. Follow the "Werk wording" guidance above: user-facing symptom + trigger + new behaviour, no internal identifiers.
i. Jira ticket. Execute Step 6.5 (Jira Ticket) to look up or create the tracking ticket. Capture the resulting CMK-XXXXX key for the commit trailer. Skip this sub-step entirely when --dry-run is active.
j. Confidence check. Before committing, self-assess the fix confidence as high, medium, or low:
k. Commit 2 (fix + unmarked test + werk). Stage the fix, the unmarked test, and the werk, then commit with Crash-Group-ID: and Jira: trailers:
<werk_id>: Fix crash in <component> (<crash_type>)
Crash-Group-ID: <group_id>
Jira: CMK-XXXXX
l. Push (high confidence only). If confidence is high, push to Gerrit:
git push -u origin <branch>
If confidence is medium or low, do NOT push. The branch is committed locally. The summary table reports these as "Local only (medium confidence)" or "Local only (low confidence)" so the user can review before pushing.
m. Return. Switch back to master for the next group:
git checkout master
Do NOT mark the group as resolved on the server as part of this pipeline. Server-side resolve is a separate, explicitly-permitted step (see "Mark Resolved on Server" below) that the user opts into after verifying the fix has actually been merged and released.
Summary. After all groups are processed, print a summary table:
| Group ID | Crash Type | Branch | Confidence | Status |
|---|---|---|---|---|
| 42 | check | sandbox/.../crash-group-42 | High | Pushed |
| 57 | gui | sandbox/.../crash-group-57 | Medium | Local only (medium) |
| 63 | check | sandbox/.../crash-group-63 | — | Skipped: already solved |
| 71 | gui | sandbox/.../crash-group-71 | — | Failed: tests fail, branch kept |
| 85 | check | — | — | Skipped: existing branch found |
The agent should skip a crash group (and report it in the summary) if:
*crash-group-<group_id> already exists, or a commit message references it.solved: true.master branch (version mismatch too large).WIP: crash-group-<group_id> — tests failing), switch back to master, and report the group as "Failed: tests fail, branch kept". Do NOT delete the branch — the user may want to inspect or continue the partial fix.When a group is skipped, log the reason and continue to the next group. Do not prompt the user.
The resolved command lists crash groups that have been fixed by searching git history for Crash-Group-ID: trailers in commit messages.
Syntax:
resolved [--since DATE] [--branch BRANCH]
--since: How far back to search (default: 90d). Accepts ISO dates or relative dates like 30d.--branch: Git branch to search (default: current branch). Use --branch --all to search all branches.This is an agent-executed workflow, not a helper script subcommand. The agent performs these steps:
Search git log for commits containing the Crash-Group-ID: trailer:
git log [<branch>] --grep='Crash-Group-ID:' --format='%H' [--since=<date>]
Extract group IDs from each matching commit by reading the trailer:
git log --format='%(trailers:key=Crash-Group-ID,valueonly)' -1 <commit_hash>
Get Gerrit change link for each commit. Extract the Change-Id trailer and look up the change number:
git log --format='%(trailers:key=Change-Id,valueonly)' -1 <commit_hash>
Construct the Gerrit URL: https://review.lan.tribe29.com/c/check_mk/+/<change_number>
If the Gerrit lookup fails, fall back to the short commit hash.
Fetch crash group details for each unique group ID using the helper script:
PYTHONPATH=.github/skills .venv/bin/python -m crash_report group <group_id>
Extract the crash group URL, crash type, and solved versions from the output.
Present a summary table:
| Group ID | Type | Crash Group | Gerrit | Solved Versions |
|---|---|---|---|---|
| 42 | check | Link | Change 12345 | 2.4.0p7, 2.3.0p25 |
| 57 | gui | Link | Change 12400 | 2.4.0p7 |
Note: This command only finds crash groups fixed using the Crash-Group-ID: commit trailer convention. Older fixes without this trailer will not appear.
Follow-up: After presenting the table, offer to run "Mark Resolved on Server" (below) for any row where the user confirms the fix is merged and released.
After a crash group has been fixed and the fix has actually been merged and released, the user may ask to mark the group as resolved on crash.checkmk.com so it stops showing up in unsolved-crash queries and customers get notified.
This step is never automatic. Do not run it as part of auto-fix, and do not run it silently after resolved. Always get explicit user confirmation (via AskUserQuestion) for each group before calling the endpoint.
Command:
PYTHONPATH=.github/skills .venv/bin/python -m crash_report resolve <group_id> \
[--versions 2.4.0p8,2.3.0p25] [--unresolve]
--versions: required when resolving. Comma-separated list of Checkmk versions that contain the fix (e.g. 2.4.0p8,2.3.0p25). The server does not guess — pass the specific patch releases the fix landed in. Check the werk and any backport commits to determine these.--unresolve: reverse a prior resolve (e.g. after discovering the fix was incomplete). --versions is not needed with --unresolve.Authentication: requires JWT auth (run authenticate.py if needed). The legacy static token is rejected server-side because the endpoint records the authenticated user as solved_by.
Typical flow:
resolved --since 30d (or hands over a list of group IDs they want to close out).<id> as resolved on the server? (versions: <auto|explicit>)".yes, run the resolve command. On no or skip, move on.When any step creates a new file (test file, helper, etc.), use the current year (run date +%Y if unsure) in the Checkmk license header:
# Copyright (C) <CURRENT_YEAR> Checkmk GmbH - License: GNU General Public License v2
# This file is part of Checkmk (https://checkmk.com). It is subject to the terms and
# conditions defined in the file COPYING, which is part of this source code package.
The show command automatically falls back to local OMD sites when the crash report is not found on crash.checkmk.com (or the remote API is unreachable). It scans /omd/sites/*/var/check_mk/crashes/<type>/<crash_id>/crash.info.
The local command lists all crash reports found in local OMD sites without contacting the remote API. This is useful for:
Note: Accessing local OMD site crash reports may require running as the site user or with appropriate file permissions.
stats command returns only aggregate counts and needs no anonymization./search, /crash_report/<id>, and /crash_group/<id> endpoints deployed. If you get 404 errors on these endpoints, fall back to the popular and stats commands which use the older API.When linking to crash.checkmk.com in tables, summaries, or Jira tickets, build URLs from these patterns rather than relying on whatever URL the API returns:
https://crash.checkmk.com/gui/crashreportgroupview/show/<group_id> (e.g. https://crash.checkmk.com/gui/crashreportgroupview/show/4750)https://crash.checkmk.com/gui/crashreportview/show/<crash_id> (e.g. https://crash.checkmk.com/gui/crashreportview/show/7e669d16-498f-11f1-9f05-005056b4f96d)The helper script exposes crash_group_url(group_id) and crash_report_url(crash_id) and uses them in all command output.