docs(agents): point PD #12 at the alias retirement path, not two stale examples (#3798)

* docs(agents): point PD #12 at the alias retirement path, not two stale examples

Prime Directive #12 cited `cfg.filter ?? cfg.filters` / `cfg.objectName ??
cfg.object` in the flow executors as debt to pay down. Both have since moved,
and neither still looks the way the sentence describes — so an agent grepping
for them finds nothing and learns nothing about how the debt is actually being
retired.

`filters` -> `filter` graduated into the ADR-0087 D2 conversion layer
(`flow-node-crud-filter-alias`), rewritten at load including the
`AutomationEngine.registerFlow` rehydration seam, so the CRUD executors read
`cfg.filter` directly. `object` -> `objectName` sits behind `readAliasedConfig`
(canonical wins, alias warns once, graduation into the conversion layer is the
next step).

Rewritten so the directive teaches the mechanism — shim, then conversion layer,
never a bare `??` — instead of naming two examples that have already moved on.
Points at #3796 for the call sites still open-coded.

Refs #3796, ADR-0087

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

* chore(changeset): empty changeset for the docs-only PD #12 rewrite

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

---------

Co-authored-by: Claude <noreply@anthropic.com>

Author: os-zhuang

.changeset/agents-pd12-alias-retirement-path.md

@@ -0,0 +1,4 @@
+---
+---
+
+docs(agents): PD #12 now points at the alias retirement path (`readAliasedConfig` shim → ADR-0087 D2 conversion layer) instead of two examples that have since moved — releases nothing.

AGENTS.md

@@ -73,7 +73,7 @@ Other scripts: `objectui:bump` (pull only), `objectui:build`, `objectui:clean`.
    When renaming a legacy var, use `readEnvWithDeprecation('OS_NEW', 'LEGACY')` from `@objectstack/types` (keeps legacy working one release). Third-party exceptions kept as-is: `NODE_ENV`, `HOME`, `OPENAI_API_KEY`, `TURSO_*`, OAuth `*_CLIENT_ID/SECRET`, `RESEND_API_KEY`, `POSTMARK_TOKEN`, `AI_GATEWAY_*`, `SMTP_*`. See #1382.
 10. **File issues for out-of-scope findings — don't silently expand scope or leave them buried.** When you hit a bug, gap, or unenforced capability that's unrelated to the current task, or too large to fix in scope, open a GitHub issue (`gh issue create`) with a clear repro/decision and link it from your PR. Corollary: **never advertise or demo a capability the runtime doesn't actually deliver** (declared ≠ enforced) — fix it, trim it, or file an issue, but don't fake coverage. Example: the spec once declared 9 validation-rule types while the write-path validator enforced only 3 (`state_machine`/`script`/`cross_field`); the gap was filed as #1475 rather than demoed in the showcase, then closed by **trimming** what could never be enforced (`unique`/`async`/`custom`) and **implementing** the rest — the spec now declares 6 and `rule-validator.ts` handles all 6. Note how narrow that claim stayed even so: the evaluator was wired into insert and single-id update only, so a bulk `updateMany` silently skipped every rule — a second `declared ≠ enforced` gap one layer down, at the **call site** rather than the `switch`; filed as #3106 and closed by evaluating the bulk match set per row. A `case` label is not enforcement; check the **call site**.
 11. **Worktree-first — never edit on the shared `main` checkout.** This repo is edited by **multiple agents at once**; the shared `main` tree has its HEAD switched and reset *under you*, silently clobbering uncommitted work. Before your **first file edit**, you MUST be in a dedicated worktree on a feature branch: `git worktree add ../objectstack-<task> -b <branch> main && cd ../objectstack-<task> && pnpm install`. A PreToolUse hook (`.claude/hooks/guard-main-checkout.sh`) **enforces** this — it blocks `Edit`/`Write`/`NotebookEdit` unless the edited file is in a dedicated **worktree** — a feature branch on the *shared* checkout is **not** enough (it still gets switched under you) — and it checks the **edited file's own repo**, so sibling repos (`objectui`/`cloud`) you touch are covered too (override for a deliberate non-task fix with `OS_ALLOW_MAIN_EDITS=1`). Full playbook below.
-12. **Contract-first — fix the metadata, not the runtime.** This is a metadata-driven framework: `packages/spec` is the one contract between metadata *producers* and the runtime/renderers that *consume* it. When a piece of metadata "doesn't work," ask **first**: *is it spec-compliant? is this the long-term-correct direction?* If the metadata is wrong, fix it at the **producer** and **reject it at authoring/publish** (validation / lint) so the error surfaces loudly — do **not** add a lenient alias or `??` fallback in the consumer (a node executor, the REST layer, a renderer) to tolerate off-spec input. A tolerant fallback fossilizes the wrong convention into a second de-facto contract, dilutes the spec, and hides the producer's bug — one strict contract beats N dialects. This is an **internal** contract (we own both ends), so "be liberal in what you accept" (Postel) does **not** apply — that's for untrusted boundaries. Change the **spec** only when the spec itself is genuinely wrong, and then deliberately (edit the Zod schema + migrate), never by accreting consumer-side fallbacks. The existing `cfg.filter ?? cfg.filters` / `cfg.objectName ?? cfg.object` in the flow executors are **debt to pay down, not a pattern to copy**. *Worked example:* an AI-authored `create_record` used `fieldValues` / `today()` / `{{trigger.record.id}}` while the executor reads `fields` / `{TODAY()}` / `{record.id}` → the fix was correcting the authoring skill + a publish-gate lint that rejects the wrong shape (cloud#688), **not** a `cfg.fields ?? cfg.fieldValues` runtime alias (framework#2419, rejected). Strengthens #5.
+12. **Contract-first — fix the metadata, not the runtime.** This is a metadata-driven framework: `packages/spec` is the one contract between metadata *producers* and the runtime/renderers that *consume* it. When a piece of metadata "doesn't work," ask **first**: *is it spec-compliant? is this the long-term-correct direction?* If the metadata is wrong, fix it at the **producer** and **reject it at authoring/publish** (validation / lint) so the error surfaces loudly — do **not** add a lenient alias or `??` fallback in the consumer (a node executor, the REST layer, a renderer) to tolerate off-spec input. A tolerant fallback fossilizes the wrong convention into a second de-facto contract, dilutes the spec, and hides the producer's bug — one strict contract beats N dialects. This is an **internal** contract (we own both ends), so "be liberal in what you accept" (Postel) does **not** apply — that's for untrusted boundaries. Change the **spec** only when the spec itself is genuinely wrong, and then deliberately (edit the Zod schema + migrate), never by accreting consumer-side fallbacks. The `cfg.filter ?? cfg.filters` / `cfg.objectName ?? cfg.object` fallbacks the flow executors once carried are **debt to pay down, not a pattern to copy** — and the way they are being paid down is the pattern to copy. `filters` → `filter` has **graduated** into the ADR-0087 D2 conversion layer (`flow-node-crud-filter-alias`): rewritten to the canonical key at load, including the `AutomationEngine.registerFlow` rehydration seam, so the CRUD executors read `cfg.filter` directly and no consumer-side fallback survives. `object` → `objectName` is mid-retirement behind `readAliasedConfig` (`packages/services/service-automation/src/builtin/config-aliases.ts`) — canonical wins, the alias keeps already-stored flows running, and each one warns once so authors get steered off it — with graduation into the conversion layer as the next step. When you must tolerate an alias at all, put it behind that shim (never a bare `??`) so it is declared, warned, lintable by `graph-lint` and *removable on a schedule*; stragglers still open-coded are tracked in #3796. *Worked example:* an AI-authored `create_record` used `fieldValues` / `today()` / `{{trigger.record.id}}` while the executor reads `fields` / `{TODAY()}` / `{record.id}` → the fix was correcting the authoring skill + a publish-gate lint that rejects the wrong shape (cloud#688), **not** a `cfg.fields ?? cfg.fieldValues` runtime alias (framework#2419, rejected). Strengthens #5.
 
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