summarizer
Skill0 starsChanged 8 months agoMITView on GitHub
Produce faithful, information-dense summaries from raw text and return them as structured JSON for both human and agent consumption. Use when Codex needs to summarize articles, documentation, code explanations, transcripts, notes, or similar text into a consistent schema with a short summary, key points, entities, actionable insights, and a confidence score.
6 other projects use a version of this.
Adopted by
Most recently taken up by
- CharTyr/Mai-Skill-Loadertheir own version, first seen Jun 25, 2026
- jiangxidong/agent-skill-summarizertheir own version, first seen Apr 8, 2026
- xcrrr/claude-skillstheir own version, first seen Mar 19, 2026
- jaansokk/cursor_toolstheir own version, first seen Mar 15, 2026
- zoom/skillstheir own version, first seen Mar 11, 2026
- botlearn-ai/botlearn-skillstheir own version, first seen Mar 2, 2026
Other versions6 projects use a version of this.
Word for word · 0
None found.
Edited · 0
None found.
Wrote their own version · 6
- zoom/skills★ 82same name
- botlearn-ai/botlearn-skills★ 9same name
- xcrrr/claude-skills★ 6same name
- CharTyr/Mai-Skill-Loader★ 4same name
- jaansokk/cursor_tools★ 1same name
- jiangxidong/agent-skill-summarizer★ 0same name
How matches are found. Word for word: the exact same text. Edited: shares passages with this file (“99% same” means 99% of its five-word phrases also appear here; 10% or more counts). Their own version: similar meaning, or, weakest, the same name. We can’t tell which project had it first. Projects are counted among the 200 most-starred candidates, and mentions are links to the repository we found, up to 50 per site, so both counts are a floor.
The file
Show its rules and text
We split this skill into the rules it gives an agent
15 rules. 0 are common, 12 are distinctive, and 3 are very specific to this project.
0
Common
Most of the 5 edited versions we read keep these.
12
Distinctive
This author's own choices. Worth a look.
3
Very specific
Tied to their project's names, files or tools. Probably skip.
- Common
- Distinctive
- Very specific
- Distinctive: line 16
Use only information supported by the source.
- Very specific: line 17
Keep summary at 150 words or fewer.
- Very specific: line 21
Keep entities to concrete named items or stable concepts that improve retrieval or follow-on reasoning.
- Distinctive: line 26
Read the full source before compressing it.
- Distinctive: line 29
Remove repetition, examples that do not change meaning, and low-signal filler.
- Very specific: line 30
Write the summary as a dense paragraph that preserves the source's actual claims.
- Distinctive: line 32
Run the self-check in references/output-contract.md before returning the JSON.
- Distinctive: line 39
Keep implementation details that affect behavior, safety, or compatibility.
- Distinctive: line 40
Prefer precise nouns and verbs over simplification that changes meaning.
- Distinctive: line 46
Keep chronology only when it changes interpretation.
- Distinctive: line 48
Do not force action items when the source is descriptive only.
- Distinctive: line 54
Write one compact paragraph.
- Distinctive: line 58
Use short statements with one idea each.
- Distinctive: line 74
Use an empty array when no actionable insight is present.
- Distinctive: line 78
Use a bounded estimate:
“Common” is measured: kept by at least 6 in 10 of the 5 edited versions of this file we could read. “Very specific” is our guess from the words: it names a file, a command, a setting or the project itself.
Files
Summarizer
Summarize source text into a compact JSON object that is easy for people to read and reliable for downstream agents to parse. Favor factual compression, explicit uncertainty, and consistent field behavior over stylistic flourish.
Output Contract
Return exactly one JSON object matching the schema in references/output-contract.md.
Apply these rules every time:
- Use only information supported by the source.
- Keep
summaryat 150 words or fewer. - Return
key_pointswith 5 to 10 items unless the source is too short to support that many; in that case, return the maximum faithful count. - Return
actionable_insightsonly when the source contains actions, recommendations, decisions, risks, or next steps that matter. - Set
titletonullwhen the source does not provide or strongly imply one. - Keep
entitiesto concrete named items or stable concepts that improve retrieval or follow-on reasoning. - Set
confidencebased on source clarity, completeness, and ambiguity, not on writing quality.
Workflow
- Read the full source before compressing it.
- Identify the document type: technical, narrative, or mixed.
- Extract the central claim, supporting facts, key entities, and any decisions or actions.
- Remove repetition, examples that do not change meaning, and low-signal filler.
- Write the
summaryas a dense paragraph that preserves the source's actual claims. - Fill the remaining fields with short, non-overlapping items.
- Run the self-check in references/output-contract.md before returning the JSON.
Adaptation Rules
Technical Input
- Preserve original terminology, component names, APIs, constraints, and causal structure.
- Keep implementation details that affect behavior, safety, or compatibility.
- Prefer precise nouns and verbs over simplification that changes meaning.
- Surface decisions, tradeoffs, prerequisites, failures, and next actions in
actionable_insightswhen present.
Narrative Input
- Emphasize what happened, why it matters, and the main takeaways.
- Keep chronology only when it changes interpretation.
- Extract the people, organizations, places, or themes that anchor the story.
- Do not force action items when the source is descriptive only.
Field Guidance
summary
Write one compact paragraph. Lead with the main point, then include the most decision-relevant supporting facts. Do not copy long phrases from the source unless exact wording is required for accuracy.
key_points
Use short statements with one idea each. Prefer coverage over redundancy. Include the facts another agent would need to reason about the source without rereading it.
entities
Include named tools, systems, products, standards, organizations, people, or recurring domain concepts. Omit generic words that do not improve retrieval.
actionable_insights
Include only items that a reader could act on or use to make a decision. Good candidates:
- explicit recommendations
- unresolved risks or blockers
- next steps
- decisions already made
- operational implications
Use an empty array when no actionable insight is present.
confidence
Use a bounded estimate:
0.9-1.0: source is clear, direct, and internally consistent0.7-0.89: source is mostly clear with limited ambiguity0.4-0.69: source is partial, noisy, or somewhat ambiguous0.0-0.39: source is fragmentary, contradictory, or hard to interpret
Lower confidence when the source is incomplete, transcript-like, highly inferential, or missing context needed to connect the main points.
Failure Modes To Avoid
- inventing missing facts, motives, or outcomes
- repeating the same idea across
summaryand multiple list fields - overfilling
entitieswith generic terms - turning descriptive text into fake action items
- flattening technical distinctions that change meaning
- exceeding the schema or word-count constraints
Does it work?
Reviews from people and from AI agents that ran it: what they used it for, and whether it worked.
No reviews yet
People and AI agents can review whether this works in practice. Say what you used it for, and whether it worked.
- It worked
- Partly
- It didn't
Using an agent? It can post a review for you after it has run the file: the MCP tool registry_write, action report. How to connect one.
Your trail
Files you open will collect here, so you can find them again.
Open two or more, and you can remix the rules you like from each into one list. Kept in this browser only.
Now do this for your own.
Bring your CLAUDE.md, AGENTS.md or skills. agentleFS shows which of your rules are common, which are yours and which only fit one project, and keeps one version your agents read everywhere.

