Add application fallback profile sources

This commit is contained in:
2026-08-01 12:37:01 +00:00
parent 01ca5430bd
commit 9354d2b373
7 changed files with 341 additions and 52 deletions

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@@ -11,7 +11,7 @@ contributor workflow and validation.
| Component | Implemented responsibility | References |
| --- | --- | --- |
| Root `promptkit` package | Provides the supported engine facade, source, backend-registration, and injection options, public request, result, prompt-inspection, and profile-inspection values, opaque prepared-execution handles, profile construction, extension interfaces, value conversion, redacted formatting, typed capacity errors, public error mapping, and engine-local profile-source assembly. | [Package GoDoc](../../doc.go), [prepared execution](../../prepared_execution.go), [backend API](../../backends.go), [engine assembly](../../engine.go) |
| Root `promptkit` package | Provides the supported engine facade, source, backend-registration, and injection options, public request, result, prompt-inspection, and profile-inspection values, opaque prepared-execution handles, profile construction, extension interfaces, value conversion, redacted formatting, typed capacity errors, public error mapping, and engine-local profile-source assembly including application fallbacks. | [Package GoDoc](../../doc.go), [prepared execution](../../prepared_execution.go), [backend API](../../backends.go), [engine assembly](../../engine.go) |
| `examples/go-library/prepare` | Demonstrates an offline downstream consumer using a prompt file, in-memory profile, inline input, and `Prepare`. It is not a public library package. | [Example program](../../examples/go-library/prepare/main.go) |
| `examples/go-library/run` | Demonstrates an offline downstream consumer using a prompt file, in-memory profile, inline input, an injected deterministic model client, and `Run`. It is not a public library package. | [Example program](../../examples/go-library/run/main.go) |
| `internal/backend` | Constructs each engine's immutable registry from the built-in OpenRouter definition and consumer additions, validates and defensively copies definitions through the shared JSON-value package, and consumes the LLM-owned OpenAI-compatible reserved request-field rule. | [Backend registry](../../internal/backend/registry.go) |

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@@ -37,9 +37,9 @@ available registry belongs to the assembled engine; the runner checks
membership during preparation and exact profile inspection.
The root engine assembles profile repositories in precedence order: in-memory
profiles, one ordinary configured source, then the embedded built-in catalog.
An explicit file or `fs.FS` profile source replaces `Config.ProfileDir` within
the ordinary configured-source category.
profiles, one ordinary configured source, an application fallback source, then
the embedded built-in catalog. An explicit file or `fs.FS` profile source
replaces `Config.ProfileDir` within the ordinary configured-source category.
Exact profile inspection performs one point-in-time lookup through those
profile sources and checks the resolved target without reading prompt, input,