feat(uptime): add MVP tools for uptime monitors

[sentry-junior]

Summary

Adds an MVP for Sentry HTTP uptime monitor management in MCP, separate from existing cron monitor tools.

Closes #1136

Tools

• find_uptime_monitors (inspect) — list org uptime monitors
• get_uptime_monitor_details (inspect) — config + recent checks
• create_uptime_monitor (project-management)
• update_uptime_monitor (project-management) — includes enable/disable
• delete_uptime_monitor (project-management)

Catalog-only (not top-level tools/list).

Upstream schema verification (getsentry/sentry)

Verified request/response contracts against:

• src/sentry/api/urls.py routes under /organizations/{org}/uptime/ and /projects/{org}/{project}/uptime/
• src/sentry/uptime/endpoints/organiation_uptime_alert_index.py (list)
• src/sentry/uptime/endpoints/project_uptime_alert_index.py (create)
• src/sentry/uptime/endpoints/project_uptime_alert_details.py (get/update/delete)
• src/sentry/uptime/endpoints/project_uptime_alert_checks_index.py (checks)
• src/sentry/uptime/endpoints/validators.py (UptimeMonitorValidator, camelCase via CamelSnakeSerializer)
• src/sentry/uptime/endpoints/serializers.py (UptimeDetectorSerializer)
• src/sentry/uptime/models.py interval/method enums: 60/300/600/1200/1800/3600, HTTP methods

Out of scope (intentionally)

• uptime stats/summary/count endpoints
• preview-check / assertion suggestions
• response captures
• get_sentry_resource URL wiring for uptime
• cron monitor create/update/delete

Checks

• pnpm --filter @sentry/mcp-core exec tsc --noEmit
• targeted vitest: uptime tools + tools.test.ts + skills.test.ts + url-utils.test.ts (87 passed)
• biome check/write on touched files
• generate-definitions regenerated tool/skill defs

Requested by David Cramer.

--

View Junior Session [Sentry]

[dcramer]

Flow: feature
Risk: medium — new create/update/delete surface over live uptime monitors; reversible, catalog-only, but can store and re-surface request credentials
Verdict: request-changes

Adds a solid MVP for HTTP uptime monitors, separate from cron tools, with verified upstream routes/schemas and baseline snapshots. Direction matches existing catalog patterns. One privacy issue should be fixed before merge.

Findings

• [should-fix] packages/mcp-core/src/tools/catalog/get-uptime-monitor-details.ts: details output dumps full headers and body into the tool response (and the description even uses Authorization as the example). Uptime monitors commonly store bearer tokens / basic auth; those values then land in agent context and chat logs. Omit body/headers by default, or redact sensitive header names (authorization, cookie, set-cookie, x-api-key, etc.) and only show non-sensitive metadata (method/url/status/checks).

Checks

test/typecheck/smoke green; eval + warden still pending.

Notes

• Residual: update path cannot clear nullable fields (owner/body/assertion) because tool null is collapsed to omit — fine for MVP if not advertised as clear-support.
• Residual: tests are baseline-only vs denser cron suites; not merge-blocking for this MVP, but constraint/empty-update coverage would help before ready-for-review.
• Scopes (project:write / project:read) match upstream ProjectAlertRulePermission alternatives and existing MCP scope set.

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[dcramer]

the hints are often describing things that should be descriptions on the params themselves. move the per-param hints, and if there is nothing left, you dont need to render the hints block...