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# Function CLASSIFICATION schema
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This is the canonical definition of the `# CLASSIFICATION` function
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doc-header label. It's referenced from code comments and commit messages —
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link here, not to anything under `AGENTS/` (that tree is git-ignored local
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agent state, not part of the repo).
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See [Public function documentation header](../CONTRIBUTING.md#public-function-documentation-header)
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in `CONTRIBUTING.md` for where `CLASSIFICATION` fits among the other header
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labels, and [C1 — Command Shadows](manual/08-components-reference/01-c1-command-shadows.md)
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for the full list of C1-shadowed commands this schema's shadow tags refer to.
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## Format
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Optional. Comma-separated tags from the closed set below, on the indented
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body line directly under the label:
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```fish
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# CLASSIFICATION
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# uses-shadow(ls), destructive
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```
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Omit the label entirely when nothing applies — omission means "nothing to
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flag," not "not yet audited," so don't add it speculatively, and don't add
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it empty as a placeholder.
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## Tags
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- **`uses-shadow(name[,name...])`** — calls a C1-shadowed command (see the
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C1 doc linked above) bare, deliberately wanting the overridden behavior
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(e.g. `ls` wanting eza's icons for a human to read).
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- **`bypasses-shadow(name[,name...])`** — calls `command <name>`,
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`builtin <name>`, or (for `help` specifically) `__original_help $argv`,
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deliberately forcing stock behavior because the shadow's override would
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break this function's logic: timestamps leaking into a parsed capture,
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`-i` prompting on a path meant to run unattended, structural output
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changes breaking a `string`/`sed` parse, etc.
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- **`destructive`** — can irreversibly delete or overwrite data: `rm -f`,
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`rm -rf`, truncating or force-overwriting a file, `git push --force`.
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Routine cleanup of the function's own `$tmpdir`/`$_tmpdir`/`mktemp`
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output (or other output it just created in this same call) is expected
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behavior, not a hazard — don't tag it.
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- **`network`** — makes an outbound network call: `curl`, `wget`, `ssh`,
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`git fetch`/`pull`/`push`/`clone`, `paru`/`yay` (package-manager network
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ops), talking to an API, etc.
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- **`blocking-prompt`** — can block waiting on interactive confirmation
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with no non-interactive escape hatch: a shadow's forced `-i`, fish's
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`read` (genuinely waiting on a terminal — not a `string split | read`
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or `while read` consuming a pipe, which never blocks), a `confirm`-style
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prompt with no `--yes`/`--force`/`--silent` bypass. Don't tag a function
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that's only ever meant to be run interactively at a prompt (a keybinding
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handler, an fzf-driven picker) — the hazard this tag exists for is a
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script or another function calling it unexpectedly, not a human running
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it themselves.
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## Placement
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Directly under `# DEPENDENCIES` if the header has one; otherwise directly
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under `# COMPONENT`; otherwise directly under `# CATEGORY`; otherwise as
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the first label in the header block (this is the common case for internal
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`_`-prefixed helpers, which usually carry none of the three).
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## Judgment calls
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`uses-shadow` vs `bypasses-shadow` is the easiest place to get subtly
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wrong — verify against the actual code, not just whether the name appears
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in the file. A function that only calls a *helper* which itself interacts
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with a shadow does not get the tag; the tag belongs on the helper. When
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generating these tags in bulk (e.g. delegating the sweep to another
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model), review every result against the source before trusting it — this
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schema's own rollout caught several false positives this way: a piped
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`read` misread as an interactive prompt, a documented `--yes` flag missed
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as an escape hatch, and cleanup of a function's own temp output flagged
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as `destructive` despite the explicit exclusion above.
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