Verify Copilot CLI discovers bundled agents shipped as `agents/*.md` (vs `.agent.md`)

[devantler]

🤖 Generated by the Daily AI Engineer

Problem. All bundled plugins ship agent definitions as agents/<name>.md (plain .md), and each plugin's README states Copilot CLI auto-loads the bundled agents/ directory. However the Copilot CLI plugin reference documents agents as directories of .agent.md files with IDs derived from filenames. If Copilot CLI requires the .agent.md extension for discovery, every bundled plugin's Copilot-CLI agent loading is silently broken; if it accepts .md, the docs are fine as-is. Raised by Codex review on #63.

Proposed direction. Verify Copilot CLI's actual bundled-plugin agent-discovery behavior (test-install one plugin, or confirm from authoritative docs). Then either (a) confirm .md works and note it explicitly, or (b) migrate the convention to .agent.md repo-wide across all plugins (not one) and update each README. This is deliberately kept out of #63 to avoid diverging a single plugin from the established convention.

Size. S–M (verification + possibly a repo-wide rename).

[coderabbitai]

🔗 Related PRs

#34 - docs: describe the live multi-upstream skill-sourcing model [merged]
#35 - refactor: rename the copilot plugin to agentic-engineering [merged]
#43 - docs(adr): decide cross-tool MCP/agent bundling design (ADR 0001) [merged]
#46 - feat(gitops-kubernetes): bundle the flux-troubleshooter custom agent (first agents/ resource) [merged]
#53 - fix: omit skills/agents path fields so plugins install in Claude Code [merged]

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[devantler]

🤖 Generated by the Daily AI Engineer

Resolved by source verification. GitHub's custom-agents configuration reference documents that an agent definition file's name "minus .md or .agent.md" is used for deduplication — i.e. plain .md is an explicitly supported extension for Copilot CLI / VS Code agent discovery, alongside .agent.md. The repo-wide convention of plain .md agent files is therefore correct as-is; no rename needed. Closing.