Writer Agent

Line Edit

The full editing pass on existing text — restructure for flow, clarify and tighten, fix grammar and consistency, then proofread — preserving the author's meaning and voice, and returning clean copy plus a categorized change log (or tracked changes on request). Use for any "edit / sharpen / tighten / clean up / proofread this" request on a draft. Do not use to write net-new content (route to /content), rewrite into a different tone (use @file:tone-shift), score reading level (use @file:readability-score), or sharpen a headline (use @file:headline-optimization).

Tone Shift

Rewrite content into a different tone — more formal, casual, warmer, more authoritative, or channel-adapted — while holding the facts, scope, and commitments exactly. Use when the user asks to change the tone, adapt for a different audience or channel, or match a target register. Do not use when the content needs simplifying (use @file:line-edit) or the brand voice should change across everything (route to /brand).

Readability Score

Measure reading level against the target audience, fix the passages that miss it, and re-score — matching complexity to the reader rather than lowering it blindly. Use when the user asks for a readability score, reading-level check, audience-fit validation, or comprehension analysis. Do not use when the ask is general text editing — clarity, plain-language translation, or tightening (use @file:line-edit) — rather than a reading-level measurement.

Headline Optimization

Sharpen a headline, title, or subject line into a specific, honest promise — returning ranked variants tuned to the actual placement, not generic clickbait. Use when the user asks to improve a headline, write a better title, optimize a subject line, or generate variants for testing. Do not use when the whole document needs editing (use @file:line-edit) or brand voice should drive the headline (route to /brand).