Line 56: .claude/agents/playwright-test-reviewer.md: custom agent markdown frontmatter is malformed: failed to parse YAML frontmatter: Nested mappings are not allowed in compact mappings at line 2, column 14: (Pattern: Copilot CLI timestamped ERROR messages, Raw log: 2026-03-20T00:12:24.272Z [ERROR] .claude/agents/playwright-test-reviewer.md: custom agent markdown frontmatter is malfor...)

Line 51: .claude/agents/playwright-test-planner.md: custom agent markdown frontmatter is malformed: failed to parse YAML frontmatter: Nested mappings are not allowed in compact mappings at line 2, column 14: (Pattern: Copilot CLI timestamped ERROR messages, Raw log: 2026-03-20T00:12:24.272Z [ERROR] .claude/agents/playwright-test-planner.md: custom agent markdown frontmatter is malform...)

Line 46: .claude/agents/playwright-test-healer.md: custom agent markdown frontmatter is malformed: failed to parse YAML frontmatter: Nested mappings are not allowed in compact mappings at line 2, column 14: (Pattern: Copilot CLI timestamped ERROR messages, Raw log: 2026-03-20T00:12:24.272Z [ERROR] .claude/agents/playwright-test-healer.md: custom agent markdown frontmatter is malforme...)

Line 41: .claude/agents/playwright-test-generator.md: custom agent markdown frontmatter is malformed: failed to parse YAML frontmatter: Nested mappings are not allowed in compact mappings at line 2, column 14: (Pattern: Copilot CLI timestamped ERROR messages, Raw log: 2026-03-20T00:12:24.272Z [ERROR] .claude/agents/playwright-test-generator.md: custom agent markdown frontmatter is malfo...)

Line 36: .claude/agents/playwright-e2e-pr-updater.md: custom agent markdown frontmatter is malformed: failed to parse YAML frontmatter: Nested mappings are not allowed in compact mappings at line 2, column 14: (Pattern: Copilot CLI timestamped ERROR messages, Raw log: 2026-03-20T00:12:24.272Z [ERROR] .claude/agents/playwright-e2e-pr-updater.md: custom agent markdown frontmatter is malfo...)

Line 31: .claude/agents/docs-update-writer.md: custom agent markdown frontmatter is malformed: failed to parse YAML frontmatter: Nested mappings are not allowed in compact mappings at line 2, column 14: (Pattern: Copilot CLI timestamped ERROR messages, Raw log: 2026-03-20T00:12:24.272Z [ERROR] .claude/agents/docs-update-writer.md: custom agent markdown frontmatter is malformed: f...)

Line 26: .claude/agents/docs-update-reviewer.md: custom agent markdown frontmatter is malformed: failed to parse YAML frontmatter: Nested mappings are not allowed in compact mappings at line 2, column 14: (Pattern: Copilot CLI timestamped ERROR messages, Raw log: 2026-03-20T00:12:24.271Z [ERROR] .claude/agents/docs-update-reviewer.md: custom agent markdown frontmatter is malformed:...)

Line 21: .claude/agents/docs-update-planner.md: custom agent markdown frontmatter is malformed: failed to parse YAML frontmatter: Nested mappings are not allowed in compact mappings at line 2, column 14: (Pattern: Copilot CLI timestamped ERROR messages, Raw log: 2026-03-20T00:12:24.271Z [ERROR] .claude/agents/docs-update-planner.md: custom agent markdown frontmatter is malformed: ...)

Line 16: .claude/agents/docs-screenshot-capturer.md: custom agent markdown frontmatter is malformed: failed to parse YAML frontmatter: Nested mappings are not allowed in compact mappings at line 2, column 14: (Pattern: Copilot CLI timestamped ERROR messages, Raw log: 2026-03-20T00:12:24.271Z [ERROR] .claude/agents/docs-screenshot-capturer.md: custom agent markdown frontmatter is malfor...)

Line 78: spawn gt ENOENT (Pattern: Generic ERROR messages, Raw log: 2026-03-20T00:12:24.294Z [ERROR] Failed to start MCP client for graphite: Error: spawn gt ENOENT)

Node.js 20 actions are deprecated. The following actions are running on Node.js 20 and may not work as expected: actions/cache@v4, actions/setup-node@v4, actions/upload-artifact@v4. Actions will be forced to run with Node.js 24 by default starting June 2nd, 2026. Please check if updated versions of these actions are available that support Node.js 24. To opt into Node.js 24 now, set the FORCE_JAVASCRIPT_ACTIONS_TO_NODE24=true environment variable on the runner or in your workflow file. Once Node.js 24 becomes the default, you can temporarily opt out by setting ACTIONS_ALLOW_USE_UNSECURE_NODE_VERSION=true. For more information see: https://github.blog/changelog/2025-09-19-deprecation-of-node-20-on-github-actions-runners/