v16.4.0 "Sharper Reasoning and Safer Service Draining"

[16.4.0] - 2026-08-30 - "Sharper Reasoning and Safer Service Draining"

Refined falsification routing and graceful-shutdown guidance, retired a
discontinued UIZZE skill, and hardened canonical reference validation. The
published catalog contains 2,097 skills.

This release helps Claude Code, Cursor, Codex CLI, Gemini CLI, Antigravity, and
related AI coding assistants choose the right reasoning depth, drain production
services without fighting their process manager, and avoid stale catalog
references after a canonical skill is removed.

Start here:

• Install: npx agentic-awesome-skills
• falsify for explicit mode selection, calibrated
  falsification, and lightweight estimate routing.
• graceful-shutdown for bounded draining,
  readiness transitions, and shutdown deadlines.
• Choose your tool
• Bundles
• Workflows

Changed

• Updated falsify with a mandatory mode-selection gate so
  incidents, simple requests, rough estimates, questions, and deep analysis do
  not all enter the same heavyweight reasoning protocol
  (#1287).
• Refined graceful-shutdown so liveness probes
  remain available during draining, aborted HTTP requests release their active
  counters, and FastAPI shutdown guidance preserves Uvicorn's signal ownership
  (#1289).

Removed

• Removed the retired ui-slop-score skill after the canonical UIZZE project
  stopped publishing it; the maintained anti-ui-slop, ui-design, and
  ui-radar skills remain available
  (#1288).

Fixed

• Reordered protected-main validation so canonical repository state is
  regenerated before cross-reference validation. Source-only skill deletions
  can now remove stale bundle and web references before the reference gate runs
  (#1291).
• Regenerated the canonical catalog, offline AAS Core data, tracked web assets,
  marketplaces, editorial bundles, compatibility reports, and Codex/Claude
  plugin distributions for 2,097 skills
  (#1292).

Security and Reliability

• Kept the updated skills documentation-only: they do not bundle or execute a
  server runtime, install dependencies, or take ownership of production
  signals.
• Preserved explicit shutdown deadlines and forced-exit fallbacks so draining
  cannot wait forever, while keeping readiness and liveness semantics separate.
• Bound canonical-reference checks to freshly regenerated trusted state and
  locked the workflow ordering with regression tests.

Who should care

• Engineers using agent reasoning protocols who need fast incident handling and
  direct, useful rough estimates without unnecessary ceremony.
• Platform teams operating Node.js, FastAPI, Kubernetes, workers, and long-lived
  connections that need predictable termination behavior.
• Maintainers removing retired skills from a source-only catalog without
  leaving stale generated references behind.

Validation

• Passed repository and reference validation, documentation-security checks,
  warning-budget enforcement, the complete 113-group repository test suite,
  176 web-app tests, the production web build, npm audits, plugin compatibility,
  bundle and marketplace checks, and protected canonical synchronization.
• Verified final source and canonical CI plus CodeQL on the exact protected
  main commit, with zero open pull requests, issues, security alerts, or
  generated-state drift before release preparation.

Limitations

• falsify structures routing and evidence checks but cannot guarantee truth or
  replace domain expertise and higher-quality evidence.
• Graceful shutdown remains runtime- and infrastructure-dependent; align probe,
  load-balancer, process-manager, and orchestrator deadlines in the deployed
  environment.
• Removing ui-slop-score does not remove the maintained UIZZE design-analysis
  skills or affect projects that independently pinned the retired upstream
  package.

Credits

• @263311487-ux for the falsify
  routing update in
  #1287.
• @Prajeeth-12 for the revised
  graceful-shutdown guidance in
  #1289.
• @samuelbushi for identifying the
  retired UIZZE skill in
  #1288.