feat(browser): byg-et-flow intake/build skill

[simo787c]

What

PR 2 of 4 for agentbase-browser. Adds byg-et-flow — the skill that builds a flow from scratch by interviewing the user first. This is the intake front half the MCP's guidance.py (the mechanics canon) deliberately lacks.

Stacked on #1 (base = feat/agentbase-browser-kom-i-gang) — merge that first.

The skill

skills/byg-et-flow/SKILL.md — the loop is interview → confirm the plan in chat → build → run on a real sample → iterate. Two disciplines it enforces:

• A five-point intake bar before building — process + rules; the distinct variants; at least one real sample input; the output and who reads it; where the Human-in-the-Loop approval step goes. Missing anything → ask, don't guess.
• Chat-visible checkpoints — the canvas lives in another browser tab the user isn't watching, so the plan is confirmed in text before building and the real output is shown after a run.

It hands off to the MCP for mechanics (read guide://flow-building, confirm handles with get_node_type, lay the whole graph in one set_flow rather than clobber-prone incremental add_node/connect_nodes) — it does not reproduce tool schemas, so tool-schema drift can't reach it.

skills/byg-et-flow/references/flow-eksempler.md — four Danish flow shapes (document → structured data → spreadsheet; sort a document pile; loop over a list; conditional branching), each distilled from guidance.py EXAMPLES + docs relationships.md and pointing at the live example:// resource for the copy-ready graph.

Testing

RED/GREEN with fresh subagents on an eager-accountant scenario. Without the skill the agent narrowed to two questions and skipped variants + the approval step; with it, the full five-point intake plus the confirm-in-chat / run-on-real-sample loop.

🤖 Generated with Claude Code

https://claude.ai/code/session_01SYvwyQEa9xsKzsQTwpBuhp

[simo787c]

Closed automatically by GitHub when PR #1's base branch was deleted on merge (a stacked-PR quirk). No content lost — this byg-et-flow commit (403680a) landed on main via #3.