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Honor cancellation while rendering prompts

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Eric Rakestraw
2026-08-11 22:48:20 +00:00
parent a04a3bbc5f
commit e83a3ce179
3 changed files with 304 additions and 29 deletions
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docs/internal/sources.md
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@@ -101,8 +101,17 @@ implemented reader behavior and failures.
## Rendering
`internal/prompt` renders definition messages as Go templates using named
artifacts and variables. It carries message roles, session IDs, and cache
control into the rendered prompt. The
artifacts and variables. Within one render, each referenced artifact body is
converted to text lazily and cached by input name for reuse across the session
and every message; the cache is not shared across renders. Conversion uses
bounded chunks and preserves the artifact bytes exactly.
Session and message parsing and execution remain synchronous. The renderer
checks cancellation before and after each parse and execution boundary,
between artifact conversion chunks, around each message, and before publishing
the complete prompt. It cannot interrupt template work already in progress and
never publishes a partial prompt after observing cancellation. It carries
message roles, session IDs, and cache control into the rendered prompt. The
[renderer tests](../../internal/prompt/renderer_test.go) own rendering behavior.
## Schemas And Output Validation