homemaker-layout/AGENTS.md
Claude 03aadec1ba
§39.7: access requirements become a declared usage: attribute (homemaker-py-sel)
Closes the second namespace sharing a first character with programme codes: the
usage prefixes b/t/l/k, under which a room silently inherited another room's
connectivity rules from its spelling.

usage is a plain, MANDATORY attribute of the space definition -- not a lookup
table. An interim design proposed a top-level usage_classes: table binding
author-coined names to behaviour; withdrawn, because an indirect name->behaviour
mapping living apart from the thing it describes is exactly the shape of the
prefix rule §39 exists to remove, it would be the only such table in a schema
where every other space property is a plain attribute, and the need it served
was already met -- "building specific" is about what a room is CALLED, and
name: is already free text.

Rule that settles it: a usage value exists iff the engine treats it differently
somewhere. Config selects among behaviours; it cannot invent them.

- programme.USAGES (living/kitchen/bedroom/toilet/utility/none) plus the
  behaviour groupings PRIVATE_USAGES / PRIVATE_STRIPS / TOILET_STRIPS /
  SOCIABLE_USAGES. Missing or unknown usage is a load error naming the code,
  from BOTH parse paths.
- Code-level, never leaf-level: usage_of(leaf.type) is looked up fresh, so a
  retype changes the class automatically. 51 sites assign leaf.type, and
  share/share_type plus the r5a resurrection are the precedent for why
  leaf-level attributes rot.
- graph.has_circulation takes the usage map and trims on declared class;
  fitness.access and the public-access check likewise. fitness._t0 is DELETED --
  no first-character type test remains anywhere in the codebase.
- utility is distinct from bedroom (same access requirements today) because it
  is a different use and gives derive_interchange_classes an axis to relax on.
- A toilet now keeps its edge to a terminal room -- the Brand adjacency, which
  the old b-before-t loop ordering severed.
- All 107 corpus entries migrated by experiments/migrate_usage_key.py, comments
  and layout preserved.

MEASURED -- the connectivity model was ~4x too permissive. `none` is not
neutral: nothing is trimmed, so the graph may route THROUGH the room, and 34 of
52 codes had no class (Dental Surgery, Records Room, Utilities Closet all served
as corridors). Edges trimmed, prefix-inferred vs declared, 3 seeds each:
  harbor-house   18 (9%)  -> 79 (39%)   inaccessible fails 0 -> 4
  health-centre  12 (8%)  -> 59 (40%)   inaccessible fails 2 -> 3
  maple-court    53 (17%) -> 123 (39%)  inaccessible fails 1 -> 5

Re-baseline (seed 1, 20k, harbor): 58 fails (15h/43s) -> 61 (16h/45s), now
reporting 1-inaccessible-usable-space x2 plus level 0 and level 1 not connected.
The count rose because the objective got honest -- those failures were always
true of the layout and the old model could not see them. Every harbor number
before this was measured against a graph crediting routes through store
cupboards.

Sharpens §38.2: the objective pays x60-85 to delete circulation, and until now
the deleted corridors were not missed because storage stood in for them. With
that substitution gone, homemaker-py-2v1 is the remaining half -- and now
measurable, because the fails it should prevent actually fire.

350 passed (+5 new), same 7 pre-existing fixture failures, lint unchanged.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01MJ84Feep79Hhm3E4zZJmnB
2026-08-26 13:39:41 +00:00

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# Agent Instructions
This project uses **bd** (beads) for issue tracking. Run `bd prime` for full workflow context.
## Quick Reference
```bash
bd ready # Find available work
bd show <id> # View issue details
bd update <id> --claim # Claim work atomically
bd close <id> # Complete work
bd dolt push # Push beads data to remote
```
## Non-Interactive Shell Commands
**ALWAYS use non-interactive flags** with file operations to avoid hanging on confirmation prompts.
Shell commands like `cp`, `mv`, and `rm` may be aliased to include `-i` (interactive) mode on some systems, causing the agent to hang indefinitely waiting for y/n input.
**Use these forms instead:**
```bash
# Force overwrite without prompting
cp -f source dest # NOT: cp source dest
mv -f source dest # NOT: mv source dest
rm -f file # NOT: rm file
# For recursive operations
rm -rf directory # NOT: rm -r directory
cp -rf source dest # NOT: cp -r source dest
```
**Other commands that may prompt:**
- `scp` - use `-o BatchMode=yes` for non-interactive
- `ssh` - use `-o BatchMode=yes` to fail instead of prompting
- `apt-get` - use `-y` flag
- `brew` - use `HOMEBREW_NO_AUTO_UPDATE=1` env var
<!-- BEGIN BEADS INTEGRATION v:1 profile:minimal hash:ca08a54f -->
## Beads Issue Tracker
This project uses **bd (beads)** for issue tracking. Run `bd prime` to see full workflow context and commands.
### Quick Reference
```bash
bd ready # Find available work
bd show <id> # View issue details
bd update <id> --claim # Claim work
bd close <id> # Complete work
```
### Rules
- Use `bd` for ALL task tracking — do NOT use TodoWrite, TaskCreate, or markdown TODO lists
- Run `bd prime` for detailed command reference and session close protocol
- Use `bd remember` for persistent knowledge — do NOT use MEMORY.md files
### Room-code namespaces (DESIGN.md §39.4/§39.6)
Leaf types share a first character across three namespaces:
- **`C` / `O` / `S`** — generic structural types (circulation / outside / sahn),
uppercase, reserved. A programme code spelled exactly one of these is rejected
at load.
- **programme room codes** — lowercase, may start with *any* letter. The generic
tests match `C`/`O`/`S` exactly, so `cr1` is a room, not circulation.
- **`usage:`** — every space declares its access-requirement class
(`living`/`kitchen`/`bedroom`/`toilet`/`utility`/`none`), mandatory, no
fallback (DESIGN.md §39.7). A code's spelling decides nothing: `name:` is free
text, `usage:` drives behaviour. There is no first-character type test left
anywhere in the codebase.
When adding or editing a programme, run
`python experiments/audit_programme_config.py` — it reports reserved-name
collisions, the usage class each code picks up, and per-room-spec satisfiability.
## Session Completion
**When ending a work session**, you MUST complete ALL steps below. Work is NOT complete until `git push` succeeds.
**MANDATORY WORKFLOW:**
1. **File issues for remaining work** - Create issues for anything that needs follow-up
2. **Run quality gates** (if code changed) - Tests, linters, builds
3. **Update issue status** - Close finished work, update in-progress items
4. **PUSH TO REMOTE** - This is MANDATORY:
```bash
git pull --rebase
bd dolt push
git push
git status # MUST show "up to date with origin"
```
5. **Clean up** - Clear stashes, prune remote branches
6. **Verify** - All changes committed AND pushed
7. **Hand off** - Provide context for next session
**CRITICAL RULES:**
- Work is NOT complete until `git push` succeeds
- NEVER stop before pushing - that leaves work stranded locally
- NEVER say "ready to push when you are" - YOU must push
- If push fails, resolve and retry until it succeeds
<!-- END BEADS INTEGRATION -->