10000app
10000app #0072 · PMF pre-judgment 75/100 · costly but low-frequency work, with Confluence templates and platform lifecycle tooling as strong substitutes

Removal is one click.
A safe sunset is not.

Plan one redacted feature or service sunset before execution. Tie every workstream to a phase, owner, source and acceptance condition. The tool reveals missing cross-functional evidence; it never contacts customers, deletes data or turns a feature off.

Build one sunset checklist locally核对依据
Free · browser-only

T-90 to T+30 sunset risk matrix

Planning gateADD A SUNSET CONTRACT
Required workstreams0 / 12
Valid tasks0
Open / overdue0 / 0
Unsourced tasks0
Legal review pending0
Due / phaseWorkstream / itemSegmentOwner / statusEvidenceAcceptance / legal

    A complete-looking timeline does not prove usage coverage, contractual rights, sufficient notice, migration success, lawful retention/deletion or safe removal. Verify every source in authorized product, legal, data and operational systems.

    Product, customer and legal boundary: raw entries stay in this browser; the paid work pack receives only redacted feature names, abstract segments, roles, dates, sources and acceptance conditions. Do not enter customer names, emails, user-level analytics, contract text, personal data, credentials, vulnerabilities or confidential incident details. The tool does not read analytics, contracts or customer data; send communications; create migrations; modify flags; delete or retain data; make a legal conclusion; approve a sunset or execute rollback. Authorized product, engineering, support, data, security, privacy and legal owners must verify and act in source systems.

    Source ledger

    Mature lifecycle substitutes and public deprecation commitments

    PMF pre-judgment 75/100 · costly but low-frequency work, with Confluence templates and platform lifecycle tooling as strong substitutes

    LaunchDarkly · Manage flags to reduce technical debtStrong technical substitute identifies flag references, evaluation status, dependencies and cleanup lifecycle.LaunchDarkly · Flag lifecycle settingsStrong platform substitute governs ready-to-remove, archive and deprecation states for feature flags.Atlassian · Deprecation policyPublic policy demonstrates external notice periods, rationale, deadlines and migration guidance as customer commitments.Stripe · SDK versioningVersioning guidance is a mature substitute for teams managing API behavior and migration compatibility.