session recap · 2026-05-30

sonnet-4-6

Extended plan-agent from a plan writer to a plan verifier — added a mandatory §8 Open step that spins up a local HTTP server, screenshots the rendered HTML plan in a browser, then bumped to v0.9.0.

Created docs/plans/create-plans-index-page.html — HTML plan for a plans index/gallery page
Added mandatory §8 Open to plan-agent SKILL.md: browser verify via local python3 HTTP server
Added 5 chrome MCP browser tools to allowed-tools so the step never prompts for permission
Updated CHANGELOG.md with v0.9.0 entry documenting the new mandatory open step
Bumped plan-agent from 0.8.0 → 0.9.0 in marketplace.json

77,642 tokens 34 min 93.2% cache hit 4 files 3 commits

Just made plan-agent smarter about its own output — a Claude Code session that turned a passive "offer to open" into a mandatory verification step.

The plan-agent plugin already writes clean HTML implementation plans. Today's work wired in the missing quality gate:

→ Added §8 Open to the planning workflow: spins up a local python3 HTTP server, navigates a browser to the plan, and screenshots it before the skill completes
→ Added 5 chrome MCP browser tools to allowed-tools so the step never interrupts with permission prompts mid-run
→ Bumped plan-agent to v0.9.0 — a plan isn't "done" until you've seen it render

Also drafted create-plans-index-page.html — a full implementation plan for building an index page that lists and filters all HTML plans by status, type, and date.

The insight: "offer to open" is skippable. "screenshot it before you're done" is not.

3 commits · 4 files · ~77,642 tokens · 93.2% cache hit · 34 min

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