/kb-init: start every session here

/kb-init [coordinator|executor|reviewer|helper] [target] prints what a session needs, in one command:

pwsh scripts/kb.ps1 init [-Role coordinator|executor|reviewer|helper] [target]

The role is the first argument when it is one of the four words, otherwise executor. The coordinating session that plans, briefs, reviews, and merges uses coordinator; an agent that only checks a result uses reviewer; a read-only Haiku helper uses helper. A subagent cannot type slash commands, so a coordinator starts every helper by telling it in the brief to run pwsh scripts/kb.ps1 init -Role helper, or pastes that output into the brief. The target is optional: a file path, an F-NN feature ID, an area, or a topic such as dpi.

It prints, in order:

1. The whole core, docs/knowledge-base/knowledge-base.md: architecture rules, the Feature and Decision indexes, and links to composition, invariants, and how-tos.
2. The workflow rules for your role, verbatim, with their W-NN IDs, and the names of the extra workflow sections your role should read.
3. Environment facts from read-only probes (a running Pointframe.Mcp.exe, the desktop lock, hidden trial installs, the worktree count). They are facts, not instructions; unknown means a probe failed.
4. Coordinator only: the active records of plan/status.json (objective, stage, next, blocker, due), labelled local operational context and not policy.
5. With a target: the kb read output, then the full text of the sections it names and its top lessons. A feature or topic that matches more than three sections prints a menu (heading, file:line, size); open the ones you need.

Then:

1. Read the output. The rules and the core apply to everything you do in this session.
2. Read each workflow section it names for your role, and the sections of the target it lists, at the lines it gives. /kb-read <file, area, F-NN, or topic> finds more later.
3. The last line shows bytes and estimated tokens per part; an overage line means a part passed its budget.

Claude Code can run this at the start of every session with an optional SessionStart hook; see "Maintenance commands" in docs/knowledge-base/maintenance.md.