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Zizmor Baseline

Issue: jmservera/SquadScope#542 (Phase A) · jmservera/SquadScope#543 (Phase B fixes) Epic: jmservera/SquadScope-Coordinator#33 Status: Phase B complete for High-severity — 0 high/medium findings; CI (default persona) is clean. Remaining pedantic info/low items are documented below.

zizmor audits GitHub Actions workflows for supply-chain risks (template injection, dangerous triggers, unpinned actions, excessive permissions). It already exists in .github/workflows/security-scanning.yml (zizmorcore/zizmor-action). This task normalizes it to the Phase-A contract — it does not recreate the job.

CI wiring (confirmed)

  • Job: zizmor-scan in .github/workflows/security-scanning.yml.
  • Triggers: push + pull_request to main/dev — so it runs on any change to .github/workflows/.
  • Non-blocking: continue-on-error: true (Phase A warning-only).
  • SARIF / annotations: advanced-security: true uploads SARIF to GitHub Code Scanning automatically.
  • Scope: all repository-owned workflows, excluding generated squad-* and sync-squad-labels files.

Baseline snapshot

  • Tool: zizmor 1.25.2
  • Date: 2026-06-26
  • Scope: repo-owned workflows (Squad-generated files excluded)

Default (regular) persona — what CI surfaces today

0 actionable findings (7 ignored, 42 suppressed). The Phase-A gate is green on the default persona; the action focuses on P0 findings (template-injection, dangerous-triggers), of which there are none.

Deep (pedantic) persona — Phase B progress

Rule Severity Phase A Now Phase B resolution
excessive-permissions High 4 0 Moved workflow-level write permissions: to job level (copilot-pricing-review, restore-publish-backup, sync-publish-to-main)
concurrency-limits Low 3 0 Added workflow concurrency: groups (copilot-pricing-review, podcaster-handoff-smoke, trigger-podcast)
undocumented-permissions Low 14 12 Documented the scoped write perms that were fixed; remainder are explanatory-comment nits in crawl-and-publish.yml, deploy-site.yml, security-scanning.yml, checkov.yml
anonymous-definition Informational 15 15 Deferred — naming jobs in large generated/complex workflows; no security impact

All High findings are resolved. The default (regular) persona that CI enforces reports no findings, so the Phase-C blocking flip is safe.

Deferred (pedantic info/low, no CI impact)

  • undocumented-permissions (Low ×12) — add explanatory comments next to remaining permissions: blocks.
  • anonymous-definition (Informational ×15) — add name: to jobs in crawl-and-publish.yml and peers.

These are documentation/hardening nits surfaced only by --persona pedantic; they do not affect the default-persona CI gate.

Running locally

# Install (matches the action's toolchain family)
pipx install zizmor      # or: pip install zizmor

# Default persona (what CI reports)
zizmor .github/workflows/

# Deeper audit used to build the Phase-B backlog
zizmor --persona pedantic .github/workflows/

# Mirror the CI input set (exclude generated Squad workflows)
zizmor $(find .github/workflows -maxdepth 1 -type f \
  \( -name "*.yml" -o -name "*.yaml" \) \
  ! -name "squad-*.yml" ! -name "sync-squad-labels.yml" | sort)

Phase plan

  • Phase A: confirm non-blocking + SARIF wiring; record baseline. ✅
  • Phase B: fix High-severity excessive-permissions + concurrency-limits. ✅ (info/low nits deferred above)
  • Phase C: blocking enforcement (#545). ✅ Dropped continue-on-error on the zizmor-scan job; default-persona findings now fail the build. Mark it required.