# constructs have nowhere to be

One `Ishikawa → scientific method → Six Sigma` loop. The record below is the
commit message as written at the time, before the outcome was known to anyone
reading this file.

## Record — `5718943`

```
let a construct declare its own meaning instead of the emitter knowing it

codegen called fn_has_decorator for exactly three names — manager, accessor,
route. Twelve others parsed, attached as {name,args}, and compiled to nothing,
including four that look like protection: @authenticate (6 uses), @authorize
(3), @rate_limit (3), @validate (2). The cause was not that the branches were
untidy. A construct had nothing to BE, so its meaning had nowhere to live
except the emitter, and every construct was therefore a compiler edit.

A name -> injection table would have moved the enumeration twenty lines up
without removing it. So the construct now carries its own meaning:

    @decorator("injects_at_entry", "engram_boundary_beat")
    fn audited() {}

    @audited
    fn risky_op() -> Int { ... }   // gets the beat, attributed to "audited"

scan_declared_decorators is a token-level pre-pass beside scan_routes, forced
by streaming codegen having no whole-program AST. manager and accessor are
seeded as the compiled-in core — the fixedSelf shape from substrate.go: a
complete fallback exists, declaration is enrichment.

This is the injection half of the seam only. The prohibition half (@manager's
#error on dharma_emit) stays hardcoded, because "which calls may appear inside
this boundary" is a query over program structure and there is nothing yet to
ask.

Verified three ways: emitted C for existing @manager/@accessor code is
byte-identical to the hardcoded path; a construct with a name the compiler has
never heard of injects correctly; the compiler self-hosts byte-identically.
90/90 native compiler tests pass.
```