feat(agent): skywatch Claude Code subagent + install command#22
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Adds a Claude Code subagent that lets users ask for AIM 7-1-5 weather
briefs in natural language ("plan a flight from KCDW to KACY tomorrow at
8am, give me a brief"). The parent agent dispatches to the skywatch
subagent, which invokes the gem CLI and returns a prose briefing in
formal AIM 7-1-5 section order.
- agents/skywatch.md — subagent definition (frontmatter + system prompt)
- Tool surface: Bash only (gem CLI is the single data source)
- Output: AIM 7-1-5 prose with formal section headings
- Surfaces "VFR FLIGHT NOT RECOMMENDED" objectively when the slot
indicates it; never issues commands ("don't fly") — pilots decide
- lib/skywatch/agent/cli.rb — `skywatch agent install` Thor subcommand
- Copies the bundled file to ~/.claude/agents/skywatch.md
- Honors SKYWATCH_AGENTS_DIR env var for testability
- Prompts before overwrite (--yes to skip prompt)
- gemspec — includes agents/*.md in the published gem
Closes the v1 agent task.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
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Summary
Adds a Claude Code subagent (`agents/skywatch.md`) that lets users ask for AIM 7-1-5 weather briefs in natural language and get a prose briefing back. The parent agent dispatches to skywatch, which invokes the gem CLI and formats the JSON brief in formal AIM 7-1-5 section order.
Design decisions (locked with the user before building):
Install path: `skywatch agent install` copies the bundled agent file to `~/.claude/agents/skywatch.md`. `SKYWATCH_AGENTS_DIR` env var honored for testability. Prompts before overwrite (`--yes` skips).
After install + a Claude Code restart:
```
User: hey Claude, plan a flight from KCDW to KACY tomorrow at 8am, VFR only — give me a weather brief
Claude Code: [dispatches to skywatch subagent → CLI → formatted AIM 7-1-5 brief]
```
Test plan
🤖 Generated with Claude Code