Module fragments 

The texts rk self-depend add serves: one fragment set per manager and venue pair, the .envrc line, and the seed file for a manager the target has no file for.

Every text is an authored file under blocks/, per distribution:a-human-faced-artifact-is-authored-text; each carries RK_DEVSHELL_* tokens rendered with a plain replace, never a format, so the ${system} interpolation survives untouched. The fragments describe where they go in a form a coding agent can apply with no parser: a closed placement vocabulary, a literal anchor substring, and a three-state present from the lexical observation.

Structs

Anchor

Where a fragment goes.

Fragment

One fragment: what to add, where, and whether it is already there.

Constants

BLOCK_NAMES

Every self-depend block, by name.

Functions

envrc_line

The one .envrc line, without its newline.

fragments

The fragments one pair serves, in application order, judged against the target. Every pair ends with the .envrc line: the sync runs on directory entry whatever manager moves the pin.

pinned_url

The pinned flake-input URL for a tag: the grammar’s prefix and the tag.

seed

The whole seed file for a pair whose manager file is absent, pinned at tag; None for a pair the matrix renders no fragment for.

seed_envrc

The whole seed .envrc, for the flake pair alone: use flake is what puts rk on the path there, and no other manager loads through direnv by default.

seed_flake

The whole seed flake, pinned at tag.