chore: rework repo automation and add weekly Slack summary

[bdeitte]

Summary

This is a wide swath of changes that is removing some of the workflows and automation that I haven't seen people using much or which we've mostly disabled. I am 100% ok with keeping any of this in- just let me know Ian or others and it's not a big deal to add anything back in.

This three pieces of GitHub automation and adds a weekly Slack summary of merged PRs. This also expects we turn off the release GitHub Slack messages in favor of the weekly summary. There's a number of other manual steps that needs to be taken before this is merged which I'll handle, mentioned below.

Removed

• preview-screenshot-gallery — the gh-aw agent (posit-vip-triage[bot]) that
  posted Playwright screenshots into PRs. Low value; removed entirely.
• The gh-aw agentic-workflow system — issue-triage + implement-plan and all
  their supporting pieces (lockfiles, docs/agentic-workflows.md, the triage-bot
  README, .github/aw action-lock, the gh-aw authoring agent + VS Code MCP +
  Copilot-setup gh-aw step, the ci.yml lockfile-guard job, and the gh-aw-only
  dependabot.yml ignores). Both agents rarely fired (triage was opt-in behind a
  label; implement-plan only ran for bot-authored plan PRs). No-op comments to
  issue [aw] No-Op Runs #158 were silenced en route, then subsumed by this removal.
• The showboat demo-on-PR convention — the AGENTS.md section, the demo-*
  justfile recipes, the demo.md gitignore entry, and the validation_docs/
  archive (68 demos; their content still lives in historical PR bodies).

Added

• .github/workflows/weekly-summary.yml + .claude/agents/weekly-summary.md: a
  Monday 16:00 UTC (and workflow_dispatch) job that gathers the week's merged
  posit-dev/vip PRs (bounded UTC-timestamp window, bot-filtered), has Claude
  pick 5–10 highlights via Bedrock, builds a Slack Block Kit payload (highlights
  linked to PRs by a deterministic number→url map; Claude-derived text is
  Slack-mrkdwn-escaped), and posts to SLACK_WEBHOOK_VIP_WEEKLY_SUMMARY.
  pull_request runs are a dry run (build + log the payload, never post).
  Modeled on Package Manager's weekly-summary, simplified to a single repo (no
  multi-repo gather, CVP/TDP enrichment, or NEWS diff).

Provisioning required before the weekly summary runs live

• Add a SLACK_WEBHOOK_VIP_WEEKLY_SUMMARY repo secret (a new Slack incoming
  webhook for the target channel).
• Allow posit-dev/vip to assume the claude-code-gha AWS role (account
  528395739535) via OIDC for Bedrock — PPM uses it under rstudio; vip is
  posit-dev, so the role's trust policy likely needs repo:posit-dev/vip:*.
• Heads-up: until that AWS trust is granted, the Weekly Summary check on this
  PR (the pull_request dry run) fails at the "Configure AWS credentials" step.
  It is not a required check and does not block merge.
• Verify the Bedrock model ID us.anthropic.claude-opus-4-8 resolves on the
  first live workflow_dispatch run (kept at parity with PPM; the us.
  cross-region inference profile is the standard invocation form).

Manual follow-ups (out of diff)

• Run /github unsubscribe posit-dev/vip releases in Slack to stop the
  "New release published by github-actions[bot]" cards (a GitHub↔Slack app
  subscription, not repo config).
• Remove the "Agentic Workflow Lockfile Guard" required status check from main
  branch protection/rulesets (the job is deleted; otherwise PRs wait on a check
  that never runs).
• Deprovision the POSIT_VIP_TRIAGE GitHub App + its POSIT_VIP_TRIAGE_CLIENT_ID
  / POSIT_VIP_TRIAGE_PEM secrets (now unused by any workflow).
• Delete the orphaned remote branch assets/preview-screenshot-gallery.
• Triage labels (needs-bot-triage, triaged-by-bot, plan-pending-review,
  needs-human-triage, skip-triage) are now inert; issue [aw] No-Op Runs #158 ("[aw] No-Op
  Runs") can be closed.

Testing

• selftests: 965 passed, 3 skipped.
• ruff check + format: clean (pinned 0.15.0).
• Weekly-summary PR-gather and Slack-payload jq (including a mrkdwn-injection
  case) verified locally against real posit-dev/vip data. The live
  Claude/Bedrock run and Slack post are validated via workflow_dispatch once
  the secret and AWS trust are in place.

[Copilot]

Pull request overview

This PR streamlines repository automation by removing several legacy/noisy GitHub automations (gh-aw agentic workflows and the PR preview screenshot agent) and the Showboat demo-on-PR convention, while adding a new GitHub Actions workflow that generates a weekly Slack summary of merged PRs using Claude (Bedrock) for highlight selection.

Changes:

• Remove gh-aw agentic workflow system (triage + implement-plan) and related repo scaffolding/docs.
• Remove the Showboat demo convention and delete the accumulated validation_docs/ demo archive (leaving only a .gitkeep).
• Add a scheduled/manual “Weekly Summary” workflow that gathers merged PRs, asks Claude for 5–10 highlights, and posts a Slack Block Kit message (PR runs are dry-run only).

Reviewed changes

Copilot reviewed 84 out of 89 changed files in this pull request and generated 1 comment.

Show a summary per file

File	Description
validation_docs/demo-workbench-trailing-slash.md	Remove archived Showboat demo doc.
validation_docs/demo-workbench-session-fail-fast.md	Remove archived Showboat demo doc.
validation_docs/demo-workbench-session-cleanup.md	Remove archived Showboat demo doc.
validation_docs/demo-workbench-quit-button-versioned.md	Remove archived Showboat demo doc.
validation_docs/demo-workbench-git-ops.md	Remove archived Showboat demo doc.
validation_docs/demo-workbench-console-fill.md	Remove archived Showboat demo doc.
validation_docs/demo-workbench-console-and-session-robustness.md	Remove archived Showboat demo doc.
validation_docs/demo-vip-version-flag.md	Remove archived Showboat demo doc.
validation_docs/demo-vip-fix-suspend-resume-reload.md	Remove archived Showboat demo doc.
validation_docs/demo-vip-fix-headless-auth-login-skip.md	Remove archived Showboat demo doc.
validation_docs/demo-vip-fix-config-repr-secrets.md	Remove archived Showboat demo doc.
validation_docs/demo-version-gating.md	Remove archived Showboat demo doc.
validation_docs/demo-update-requests-dependency.md	Remove archived Showboat demo doc.
validation_docs/demo-update-banner-text.md	Remove archived Showboat demo doc.
validation_docs/demo-totp-seed.md	Remove archived Showboat demo doc.
validation_docs/demo-tls-cert-verify-diagnostic.md	Remove archived Showboat demo doc.
validation_docs/demo-status-json-output.md	Remove archived Showboat demo doc.
validation_docs/demo-remove-shiny-k8s-modes.md	Remove archived Showboat demo doc.
validation_docs/demo-readback-routing.md	Remove archived Showboat demo doc.
validation_docs/demo-publish-wheels-pypi.md	Remove archived Showboat demo doc.
validation_docs/demo-preview-screenshot-agentic-workflow.md	Remove archived Showboat demo doc.
validation_docs/demo-option-b-vip-tests.md	Remove archived Showboat demo doc.
validation_docs/demo-move-tickets-to-team-projects.md	Remove archived Showboat demo doc.
validation_docs/demo-mock-idp-e2e.md	Remove archived Showboat demo doc.
validation_docs/demo-migrate-workbench-smoke-tests.md	Remove archived Showboat demo doc.
validation_docs/demo-load-tests.md	Remove archived Showboat demo doc.
validation_docs/demo-landing-page.md	Remove archived Showboat demo doc.
validation_docs/demo-issue-467-session-cleanup.md	Remove archived Showboat demo doc.
validation_docs/demo-issue-430-interactive-auth-headless-only.md	Remove archived Showboat demo doc.
validation_docs/demo-issue-178-test-timeout.md	Remove archived Showboat demo doc.
validation_docs/demo-issue-178-followup.md	Remove archived Showboat demo doc.
validation_docs/demo-issue-170-headless-auth-url.md	Remove archived Showboat demo doc.
validation_docs/demo-inline-full-skip-reasons.md	Remove archived Showboat demo doc.
validation_docs/demo-ide-extension-validation.md	Remove archived Showboat demo doc.
validation_docs/demo-git-clone-cleanup.md	Remove archived Showboat demo doc.
validation_docs/demo-git-anonymous-auth.md	Remove archived Showboat demo doc.
validation_docs/demo-gh-pages-coexistence.md	Remove archived Showboat demo doc.
validation_docs/demo-force-vip-release.md	Remove archived Showboat demo doc.
validation_docs/demo-fix-workbench-login-display-name.md	Remove archived Showboat demo doc.
validation_docs/demo-fix-terminal-run-timeout.md	Remove archived Showboat demo doc.
validation_docs/demo-fix-ssl-redirect-alb.md	Remove archived Showboat demo doc.
validation_docs/demo-fix-rstudio-console-prompt-wait.md	Remove archived Showboat demo doc.
validation_docs/demo-fix-package-build.md	Remove archived Showboat demo doc.
validation_docs/demo-fix-locust-install-instructions.md	Remove archived Showboat demo doc.
validation_docs/demo-fix-issue-183.md	Remove archived Showboat demo doc.
validation_docs/demo-fix-issue-182.md	Remove archived Showboat demo doc.
validation_docs/demo-fix-issue-173-headless-auth-skip.md	Remove archived Showboat demo doc.
validation_docs/demo-fix-example-report-pm-license.md	Remove archived Showboat demo doc.
validation_docs/demo-fix-connect-user-list-skip.md	Remove archived Showboat demo doc.
validation_docs/demo-fix-280-extensions-search-input.md	Remove archived Showboat demo doc.
validation_docs/demo-fix-268-insecure-tls-skip.md	Remove archived Showboat demo doc.
validation_docs/demo-deterministic-lockfile.md	Remove archived Showboat demo doc.
validation_docs/demo-debug-pypi-publishing.md	Remove archived Showboat demo doc.
validation_docs/demo-data-source-stray-collection.md	Remove archived Showboat demo doc.
validation_docs/demo-custom-extension-example.md	Remove archived Showboat demo doc.
validation_docs/demo-connect-system-checks.md	Remove archived Showboat demo doc.
validation_docs/demo-connect-super-post-init.md	Remove archived Showboat demo doc.
validation_docs/demo-connect-content-cleanup.md	Remove archived Showboat demo doc.
validation_docs/demo-connect-chronicle-status.md	Remove archived Showboat demo doc.
validation_docs/demo-chronicle-tests.md	Remove archived Showboat demo doc.
validation_docs/demo-chromium-revision-check.md	Remove archived Showboat demo doc.
validation_docs/demo-bot-implement-issue-344.md	Remove archived Showboat demo doc.
validation_docs/demo-bot-implement-issue-308.md	Remove archived Showboat demo doc.
validation_docs/demo-bot-implement-issue-307.md	Remove archived Showboat demo doc.
validation_docs/demo-bot-implement-issue-302.md	Remove archived Showboat demo doc.
validation_docs/demo-bot-implement-issue-301.md	Remove archived Showboat demo doc.
validation_docs/demo-bot-fix-issue-283.md	Remove archived Showboat demo doc.
validation_docs/demo-binary-package-tests.md	Remove archived Showboat demo doc.
validation_docs/.gitkeep	Retain directory placeholder after demo archive removal.
justfile	Remove Showboat demo helper recipes.
docs/agentic-workflows.md	Remove documentation for gh-aw agentic workflows (feature removed).
CHRONICLE_TEST_PLAN.md	Remove reference to a deleted demo artifact.
AGENTS.md	Remove gh-aw workflow references and Showboat demo convention docs.
.vscode/mcp.json	Remove VS Code MCP config for gh-aw (feature removed).
.gitignore	Stop ignoring demo.md (Showboat workflow removed).
.github/workflows/weekly-summary.yml	Add scheduled/manual Slack weekly summary workflow (PR runs are dry-run).
.github/workflows/preview-screenshot-gallery.md	Remove preview screenshot gh-aw workflow.
.github/workflows/issue-triage.md	Remove gh-aw issue triage workflow.
.github/workflows/implement-plan.md	Remove gh-aw plan implementation workflow.
.github/workflows/copilot-setup-steps.yml	Remove gh-aw CLI installation from Copilot setup.
.github/workflows/ci.yml	Remove the gh-aw lockfile guard CI job.
.github/triage-bot/README.md	Remove gh-aw triage bot documentation.
.github/dependabot.yml	Remove gh-aw-specific Dependabot ignore rules.
.github/aw/actions-lock.json	Remove gh-aw action lockfile.
.github/agents/agentic-workflows.agent.md	Remove agent dispatcher for gh-aw workflow authoring.
.claude/agents/weekly-summary.md	Add Claude agent instructions for selecting weekly PR highlights.

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[bdeitte]

🧪 vip Weekly Summary

2026-07-10 to 2026-07-17 | 15 merged PRs | v0.53.0 to v0.54.6

🚀 Features & tests

• The CLI now supports a --version flag and a version subcommand to report the installed VIP version (PR #472)
• New Package Manager web UI smoke tests validate the interface across multiple package ecosystems (PR #460)
• A new workflow automatically routes team-labeled issues to the right product project board (PR #435)
• Added a QA-focused presentation explaining the VIP test architecture (PR #468)

🔧 Fixes & chores

• Orphaned Workbench session cleanup now escalates to a full browser UI sweep, a large overhaul of the cleanup path (PR #474)
• Workbench tests gained a default git clone repo, more accurate skips, and reliable R version readback (PR #490)
• Workbench terminal_run now raises ExecError immediately on failure instead of hanging (PR #445)
• The Quarto report can now render from any directory and gained badge styling (PR #487)
• Workbench browser tests are more resilient to single-page-app timing so cleanup reliably finds sessions

_{Rendered from the weekly-summary dry-run payload in run 29607435969. This was a pull_request dry run — the payload was built and logged but not posted to Slack. The release range reflects this run's rolling 7-day window (anchored at run time), so it starts at v0.53.0 rather than v0.52.4.}

Raw Slack payload

{
  "text": "vip Weekly Summary",
  "blocks": [
    {
      "type": "header",
      "text": {
        "type": "plain_text",
        "text": "🧪 vip Weekly Summary",
        "emoji": true
      }
    },
    {
      "type": "context",
      "elements": [
        {
          "type": "mrkdwn",
          "text": "*2026-07-10* to *2026-07-17* | <https://github.com/posit-dev/vip/pulls?q=is%3Apr+is%3Aclosed|15 merged PRs> | <https://github.com/posit-dev/vip/releases|v0.53.0 to v0.54.6>"
        }
      ]
    },
    {
      "type": "section",
      "text": {
        "type": "mrkdwn",
        "text": "*🚀 Features &amp; tests*\n• The CLI now supports a --version flag and a version subcommand to report the installed VIP version (<https://github.com/posit-dev/vip/pull/472|PR #472>)\n• New Package Manager web UI smoke tests validate the interface across multiple package ecosystems (<https://github.com/posit-dev/vip/pull/460|PR #460>)\n• A new workflow automatically routes team-labeled issues to the right product project board (<https://github.com/posit-dev/vip/pull/435|PR #435>)\n• Added a QA-focused presentation explaining the VIP test architecture (<https://github.com/posit-dev/vip/pull/468|PR #468>)"
      }
    },
    {
      "type": "section",
      "text": {
        "type": "mrkdwn",
        "text": "*🔧 Fixes &amp; chores*\n• Orphaned Workbench session cleanup now escalates to a full browser UI sweep, a large overhaul of the cleanup path (<https://github.com/posit-dev/vip/pull/474|PR #474>)\n• Workbench tests gained a default git clone repo, more accurate skips, and reliable R version readback (<https://github.com/posit-dev/vip/pull/490|PR #490>)\n• Workbench terminal_run now raises ExecError immediately on failure instead of hanging (<https://github.com/posit-dev/vip/pull/445|PR #445>)\n• The Quarto report can now render from any directory and gained badge styling (<https://github.com/posit-dev/vip/pull/487|PR #487>)\n• Workbench browser tests are more resilient to single-page-app timing so cleanup reliably finds sessions"
      }
    }
  ]
}