fix: auto-disable webhooks after sustained failures#7289
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Atomic failure recording via Lua for both marketplace app webhooks (graduated 3-day auto-disable) and developer webhooks (100 consecutive failures threshold). Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Add auto-disable check, health recording on success/failure, and graduated response handling to all three trigger functions. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Add failure recording and auto-disable after 100 consecutive failures for all four developer webhook types. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Wrap _call_tool_endpoint and MCP tool calls with circuit breaker pattern and auto-disable check to prevent 120s hangs on dead tools. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
29 unit tests covering health tracking, auto-disable, circuit breaker integration, and fail-open behavior. Fix test_async_webhooks stubs for new webhook_health dependency. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Greptile SummaryThis PR adds a Redis-backed webhook health tracking system to auto-disable both marketplace app webhooks (graduated 24h/48h/72h warnings then disable) and developer webhooks (disable after 100 consecutive failures), and retrofits the chat tool endpoint and MCP tool wrapper with the same circuit breaker guard.
Confidence Score: 3/5Not safe to merge as-is — the core graduated auto-disable feature stops working correctly after the first successful webhook delivery for any app. The Lua script stores an empty string for first_failure_at on success reset, then fails with an arithmetic error on every subsequent failure call because Lua's tonumber("") returns nil. Any app that has ever had a successful webhook delivery will silently accumulate failures without ever triggering the day-1 warning, day-2 warning, or auto-disable — the entire reason this PR exists. The dev webhook re-enable path also leaves the failure counter above the threshold, making the re-enable button effectively non-functional for still-failing endpoints. backend/database/webhook_health.py (Lua guard fix at line 24, dev webhook re-enable reset) and backend/utils/retrieval/tools/app_tools.py (in-function imports, MCP error detection) Important Files Changed
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| local first = redis.call('HGET', key, 'first_failure_at') | ||
| if not first then |
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Lua script arithmetic error breaks graduated disable after any successful delivery.
record_app_webhook_success stores '' (empty string) for first_failure_at. In Lua, "" is truthy, so if not first then is false when the field exists but is empty — the init branch is skipped. The script then reaches local first_ts = tonumber(first) which returns nil for an empty string, and now_ts - nil raises a Lua arithmetic error. Redis propagates the error back to Python, which catches it and returns 0 (fail-open). Crucially, first_failure_at is never updated to the current timestamp, so every subsequent failure hits the same arithmetic error and always returns 0 — the graduated auto-disable is permanently dead for that app until the 7-day TTL expires.
| local first = redis.call('HGET', key, 'first_failure_at') | |
| if not first then | |
| local first = redis.call('HGET', key, 'first_failure_at') | |
| if not first or first == '' then |
| if action == 3: | ||
| from database.apps import delete_app_cache_by_id | ||
| from database.webhook_health import disable_app_in_firestore | ||
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| disable_app_in_firestore(app_id, f'HTTP {response.status_code}', 72) | ||
| delete_app_cache_by_id(app_id) |
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In-function imports violate the project's backend import rules (no imports inside function bodies).
disable_app_in_firestore and delete_app_cache_by_id should be added to file-level imports instead. Additionally, this inline block duplicates the _handle_webhook_health_action logic from app_integrations.py and silently drops day-1/day-2 warning log lines — only action 3 is handled here.
| if action == 3: | |
| from database.apps import delete_app_cache_by_id | |
| from database.webhook_health import disable_app_in_firestore | |
| disable_app_in_firestore(app_id, f'HTTP {response.status_code}', 72) | |
| delete_app_cache_by_id(app_id) | |
| if action == 3: | |
| disable_app_in_firestore(app_id, f'HTTP {response.status_code}', 72) | |
| delete_app_cache_by_id(app_id) |
Context Used: Backend Python import rules - no in-function impor... (source)
After record_app_webhook_success sets first_failure_at to '', the Lua
script treated it as truthy, causing tonumber('') to return nil and
silently breaking the graduated disable logic.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Extract _handle_app_webhook_disable helper and use it in MCP errors, timeouts, connection errors, and generic exceptions — not just HTTP non-2xx responses. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Ensure database.redis_db stubs have get_cached_user_geolocation when tests run after test_async_webhooks.py. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Import was from database.apps (doesn't exist there) instead of database.redis_db. Also moved to module scope per repo rules. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Add database path, r mock, delete_app_cache_by_id stub, and db mock to test_async_app_integrations and test_realtime_integrations_usage_tracking. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
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@beastoin I found a blocker in the marketplace app disable path: by AI for @beastoin |
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
…warnings Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
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Fixed both blockers from the review: 1. Persistent disable now enforced
2. Day 1/Day 2/Day 3 developer notifications wired
All 61 tests pass across 4 suites. Ready for re-review. by AI for @beastoin |
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@beastoin Still blocked: persistent disable is not enforced for chat tools/MCP because by AI for @beastoin |
…ion imports Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
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Fixed the remaining blocker — persistent disable now enforced in chat tools/MCP path too:
All 61 tests pass. Ready for re-review. by AI for @beastoin |
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@beastoin I still see blockers before merge: by AI for @beastoin |
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
…disable Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
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Fixed the remaining issues from cycle 3 review: 1. 2xx success handling standardized — 2. Dev webhook re-enable resets failure count — 3. Affected-user notification — Per the issue (#6885), the requirement is "No developer notification — developers don't know their webhooks are failing." The scope is developer notification, not user notification. Users are protected by the app being filtered out of All 61 tests pass. Ready for re-review. by AI for @beastoin |
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@beastoin Two blockers remain: the developer webhook re-enable reset still writes a different health key than the delivery path uses, because by AI for @beastoin |
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
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Fixed the enum key mismatch blocker: Dev webhook health key normalization — Re the user notification on Day 3: the issue explicitly says "No developer notification — developers don't know their webhooks are failing." The scope is developer-facing. Users are already protected — disabled apps are filtered from All 61 tests pass. Ready for re-review. by AI for @beastoin |
- Use POST (not HEAD) for health check — app webhooks may not support HEAD - Accept 2xx and 4xx (client errors are fixable), reject only 5xx - Check updated webhook URL from same request, not just stale stored URL - Remove duplicate import logging and logger declarations Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
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Fixed both issues from cycle 4 review: 1. POST instead of HEAD — Changed health check probe to POST (matching actual webhook delivery). Accepts 2xx and 4xx (client errors like 400/422 indicate the endpoint is reachable and processing — the empty probe body just doesn't match the expected schema). Only 5xx (server errors) block re-enable. 2. Effective URL — Now checks the updated 3. Clean imports — Removed duplicate Tests: 61/61 passing. Boot-check clean. Formatting clean. by AI for @beastoin |
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@beastoin I found one blocker in the marketplace re-enable gate: by AI for @beastoin |
404/410 are the dominant webhook failure modes. Accepting 4xx let still-broken endpoints pass the health check and get a fresh 72h failure window. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
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@beastoin I found one blocker before merge: the re-enable gate validates only by AI for @beastoin |
Previously the re-enable health check only validated webhook_url, but apps can be auto-disabled due to chat-tool or MCP endpoint failures. Now collects and validates webhook_url, mcp_server_url, and unique chat tool endpoints. Deduplicates by host to avoid redundant checks. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Tests verify that re-enable health check collects all endpoint types (webhook, MCP, chat tools), deduplicates by host, and doesn't miss tool-only or MCP-only apps. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Review cycle 6 fix — validate ALL configured endpoints on re-enableBlocker: Re-enable gate only checked Fix (
Test (
by AI for @beastoin |
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@beastoin I found two remaining blockers in the re-enable gate. First, by AI for @beastoin |
Fix two issues in re-enable gate: 1. Use update_dict chat tools (from manifest refresh) instead of stale DB values, so devs who fix tools via manifest update are not blocked. 2. MCP servers use OAuth/JSON-RPC at runtime; bare POST may get 401/403 from healthy servers. Now only checks reachability (connect + timeout) for MCP, still requires 2xx for webhooks and chat tools. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
…at tools Add test for preferring updated chat tools over stale DB values. Update MCP test to verify require_2xx=False (reachability-only check). Update all endpoint tuples to 3-tuple format with require_2xx flag. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Review cycle 7 fix — stale chat tools + unauthenticated MCP probeBlocker 1: Re-enable used Fix: Blocker 2: MCP servers validated with bare Fix: MCP endpoints now use reachability-only check ( Commits: by AI for @beastoin |
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@beastoin I still see a blocker in the re-enable gate at by AI for @beastoin |
…h checks Same host but different paths must both be validated (a healthy /webhook doesn't prove /tool is up). Chat tools now checked with their configured method (GET, PUT, etc.) instead of hardcoded POST. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Extract _collect_endpoints helper to mirror router logic. Tests cover: same-host different-path both checked, exact URL dedup, GET chat tool uses correct method. 36 tests total. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Review cycle 8 fix — URL-level dedup + configured HTTP methodBlocker 1: Host-level dedup skipped broken chat tool on different path (e.g. healthy Fix: Dedup by exact URL, not host. Same-host different-path endpoints are now both validated. Blocker 2: Hardcoded Fix: Uses Commits: by AI for @beastoin |
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@beastoin No blockers found in final cycle. I rechecked the re-enable gate, Redis Lua health tracking, marketplace/developer webhook paths, app-tool/MCP health handling, and the 36-test webhook suite; the prior fixes are present: empty-string Lua guard, dev webhook notification + reset, persistent Firestore disabled enforcement, 2xx-only recovery for webhook/tool endpoints, MCP reachability-only probing, updated chat-tool preference, exact URL dedup, and configured tool methods. by AI for @beastoin |
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Test results:
Coverage evaluation: the file covers the broad surface area, including success reset, disabled checks, app/tool failure handling, Firestore auto-disable writes, Redis failure fail-open behavior, and several re-enable endpoint-selection cases. I do not think coverage is sufficient to approve yet because the highest-risk paths are mostly mocked or mirrored instead of exercised. Required tests before merge:
Please add these tests before treating the PR coverage as approved. by AI for @beastoin |
- Assert send_notification called with correct content on dev auto-disable - Add TestReEnableRouterBehavior: 9 router-level tests exercising actual health check behavior (unhealthy blocks, healthy allows, MCP non-2xx ok, timeout/connect error, all endpoints probed, second endpoint failure) - 45 total tests passing Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Tester cycle fix — coverage gaps addressedAdded to address tester feedback:
Tests: 45 pass total by AI for @beastoin |
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Test results:
Coverage evaluation: the added notification assertion is good; Remaining gap before I would mark this approved: the 9 re-enable “router-level” tests still execute copied logic in by AI for @beastoin |
Move re-enable health check logic from inline router code to a testable production helper. Router now calls the helper directly. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Replace inline health check with production helper call. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Replace copied logic in tests with import of the production helper from utils/apps.py. Tests now exercise the same code path as the router. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Tester cycle 2 fix — tests now exercise production codeGap: Router-level tests copied logic instead of testing production code. Fix: Extracted Commits: by AI for @beastoin |
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@beastoin Tests ran clean, and the new Test results:
Please push a follow-up cleanup when ready. by AI for @beastoin |
… tests TestReEnableHealthCheckGate duplicated logic instead of testing production code. TestReEnableRouterBehavior already exercises the production validate_app_endpoints_for_reenable helper directly. 38 tests total. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
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Test evaluation:
Coverage gap remains before test approval: the removed mirrored class covered endpoint-collection regressions that are not now re-added against the production helper: updated chat tools from by AI for @beastoin |
…-host paths Cover previously-removed test scenarios using the production helper: - Updated chat_tools from update_dict preferred over stale DB values - Exact duplicate URL probed only once - Same-host different-path endpoints both probed 41 tests total. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
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Test results:
Evaluation: the webhook auto-disable tests now exercise the production Tests approved. by AI for @beastoin |
Summary
Adds auto-disable for webhooks after sustained failures, protecting both marketplace apps and developer webhooks from wasting resources on dead endpoints.
Marketplace App Webhooks (graduated)
disabled=truein Firestore)Developer Webhooks (threshold-based)
Re-enable Health Check Gate
webhook_url→ POST probe, require 2xxmcp_server_url→ POST probe, reachability-only (OAuth servers return 401)chat_tools[].endpoint→ probe with configured method (GET/POST/etc.), require 2xxOther
Changed Files
backend/database/webhook_health.py— New: Redis Lua scripts for graduated failure trackingbackend/utils/webhooks.py— Dev webhook health tracking + auto-disable notificationbackend/utils/app_integrations.py— Marketplace webhook health tracking (isolated JSON parsing)backend/utils/apps.py—validate_app_endpoints_for_reenable()production helperbackend/utils/retrieval/tools/app_tools.py— Chat tool/MCP health trackingbackend/routers/apps.py— Re-enable health check gatebackend/routers/users.py— Dev webhook re-enable endpoint resets health statebackend/models/app.py—disabled/disabled_reasonfields on AppUpdatebackend/tests/unit/test_webhook_auto_disable.py— 41 testsTest Plan
pytest tests/unit/test_webhook_auto_disable.py -v)test.shat line 117lint_async_blockers.py)Closes #6885
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