Part of #4548 — rewriting the 353 hand-written-docs write-good.Passive
hits so #4546 can flip the rule to error. This batch: docs/networking/gateway.md
(27 hits), docs/tools/subagent.md (19), docs/web-ui/dashboard.md (18).
Minimal, meaning-preserving rewrites to active voice only — no
restructuring beyond what each flagged sentence needed. Genuine false
positives (predicate-adjective state descriptions like "is required",
"is broken", "is unchanged", adjectival past participles like "named
buckets", and one quoted literal UI string) are left in place; the
per-line reasoning is on the tracking issue.
Note: docs/tools/forge-cli.md (37 hits, would have been the single
biggest file) turned out to be generated from hive-forge's own clap
help text (see hive-forge/src/main.rs's `MarkdownDocs` verb) — same
category as the already-excluded hivectl-cli.md/swarmctl-cli.md, so
it's untouched here. Flagged on #4548.
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