observal agent pull --harness copilot-cli generates an agent file that fails Copilot CLI schema validation (missing per-server tools on mcp-servers)

[Lokesh7025]

Checked for duplicates?

• This issue is not a duplicate

What are the steps to reproduce this bug?

Run:
observal agent pull task-ceator --harness copilot-cli --no-prompt --dir .
Confirm the file was written:
cat .github/agents/task-ceator.agent.md
Frontmatter looks like:
mcp-servers:
github:
type: stdio
command: observal-shim
args: [...]
notion-api:
type: stdio
command: observal-shim
args: [...]
(Note: no tools: field under either MCP server.)
Launch Copilot CLI from the same repo root:
copilot --agent task-ceator
Observe the error:
✗ Custom agent "task-ceator" not found. Available agents: none
Inside an interactive session, /agent also shows no agents.

Expected behaviour

The pulled agent should be loadable by Copilot CLI immediately after observal agent pull --harness copilot-cli. Either:

• Observal should emit a tools: array per MCP server entry under mcp-servers (e.g., tools: ['*']), matching Copilot CLI's schema ({command, args, tools, type?, cwd?, env?,
  timeout?}); or
• Observal should omit the mcp-servers block from the .agent.md entirely and rely solely on the MCP definitions written to .copilot/mcp-config.json (which it already populates
  correctly).

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