Reads the input content, identifies the key signals (decisions, action items, facts, commitments), and produces a compressed summary at the target length. Preserves entropy -- maximum meaning per unit of output.
SkillScore55Maintained
Automatic
◆Writing & Editing pack
Last verified 8/27/2026
What it changes
Passed 12 of 22 test cases with the skill, and 4 of 22 without it.
Without skill18%
With skill55%
Checks it passed that the model alone missed
The output includes key research takeaways.
The summary highlights executive sales metrics.
The output length is within the 150 to 300 word range.
and 7 more in the full report
9 fixed3 passed either way9 still failing1 broke
Pass-rate lift
+36 pp
Tokens
+13%
Agent turns
0%
Response time
-2%
Model gemini-3.6-flashMeasured 8/27/2026v212 of 22 cases passed with skill
Tokens, turns and time describe resource use, not a dollar price.
See it in action
One of 9 test cases the skill fixed. Same model, same prompt, with and without the skill.
1 of 9
Prompt
/summarize logs/outage-incident-2024-05.log --audience executive --length short
What was checked, without and with the skill
Checked
Without skill
With skill
The output word count is within the 50 to 100 word range.
Missed
Passed
The summary highlights executive-level business impact.
Missed
Passed
case-09 · gemini-3.6-flash · 8/27/2026 · answers are capped and redacted
What's inside
The instructions your model reads when the skill loads.
SKILL.md34 linessingle file
/summarize
Summarize content for a target audience. Writer-owned.
Compress — Reduce to target length preserving key information.
Format — Structure for the target audience's preferred genre.
Deliver — Summary with clear takeaways and action items.
Length Targets
Length
Words
Use Case
short
50-100
Slack message, quick update
medium
150-300
Email, brief, status update
long
400-800
Report section, detailed overview
Examples
/summarize meeting-transcript.md --audience executive --length short
/summarize architecture-doc.md --audience technical --length medium
/summarize quarterly-data.md --audience general --length long
Takes content in one genre and re-encodes it in another while preserving the core signal. A spec becomes a brief. A transcript becomes action items. A brain dump becomes a plan. Matches the target genre's skeleton and the receiver's bandwidth.