Capture Conversation
outline/outline
Save the current conversation, a decision, or a set of notes as a document in an Outline collection; use when the user wants to keep what was discussed in their knowledge base.
Free-form thinking mode - consider a topic through successive distinct knowledge-base perspectives (hub lenses, original frameworks, wildcard distant notes).
$ npx skills add Abilityai/cornelius --skill think-about-it -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install Abilityai/cornelius think-about-it --agent claude-codeProject scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).
$ git clone --depth 1 https://github.com/Abilityai/cornelius.git skills-src && mkdir -p .claude/skills && cp -r skills-src/.claude/skills/think-about-it .claude/skills/think-about-it && rm -rf skills-srcUse ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.
Claude Code skills documentation · loads skills from .claude/skills/
Install the "think-about-it" agent skill from https://github.com/Abilityai/cornelius/tree/main/.claude/skills/think-about-it into .claude/skills/think-about-it/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "think-about-it", then confirm the skill loads.Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$skill-installer install https://github.com/Abilityai/cornelius/tree/main/.claude/skills/think-about-itType this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.
$ npx skills add Abilityai/cornelius --skill think-about-it -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install Abilityai/cornelius think-about-it --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/Abilityai/cornelius.git skills-src && mkdir -p .agents/skills && cp -r skills-src/.claude/skills/think-about-it .agents/skills/think-about-it && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "think-about-it" agent skill from https://github.com/Abilityai/cornelius/tree/main/.claude/skills/think-about-it into .agents/skills/think-about-it/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "think-about-it", then confirm the skill loads.Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add Abilityai/cornelius --skill think-about-it -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install Abilityai/cornelius think-about-it --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/Abilityai/cornelius.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/.claude/skills/think-about-it .cursor/skills/think-about-it && rm -rf skills-srcUse ~/.cursor/skills/ instead of .cursor/skills for a personal install.
Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/
Install the "think-about-it" agent skill from https://github.com/Abilityai/cornelius/tree/main/.claude/skills/think-about-it into .cursor/skills/think-about-it/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "think-about-it", then confirm the skill loads.Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gemini skills install https://github.com/Abilityai/cornelius.git --path .claude/skills/think-about-it--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.
$ npx skills add Abilityai/cornelius --skill think-about-it -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install Abilityai/cornelius think-about-it --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/Abilityai/cornelius.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/.claude/skills/think-about-it .gemini/skills/think-about-it && rm -rf skills-srcUse ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.
Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/
Install the "think-about-it" agent skill from https://github.com/Abilityai/cornelius/tree/main/.claude/skills/think-about-it into .gemini/skills/think-about-it/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "think-about-it", then confirm the skill loads.Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gh skill install Abilityai/cornelius think-about-itInstalls for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).
$ npx skills add Abilityai/cornelius --skill think-about-it -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/Abilityai/cornelius.git skills-src && mkdir -p .github/skills && cp -r skills-src/.claude/skills/think-about-it .github/skills/think-about-it && rm -rf skills-srcUse ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.
GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/
Install the "think-about-it" agent skill from https://github.com/Abilityai/cornelius/tree/main/.claude/skills/think-about-it into .github/skills/think-about-it/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "think-about-it", then confirm the skill loads.GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add Abilityai/cornelius --skill think-about-it -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install Abilityai/cornelius think-about-it --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/Abilityai/cornelius.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/.claude/skills/think-about-it .opencode/skills/think-about-it && rm -rf skills-srcUse ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.
OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/
Install the "think-about-it" agent skill from https://github.com/Abilityai/cornelius/tree/main/.claude/skills/think-about-it into .opencode/skills/think-about-it/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "think-about-it", then confirm the skill loads.OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
think-about-itFree-form thinking mode - consider a topic through successive distinct knowledge-base perspectives (hub lenses, original frameworks, wildcard distant notes).
Think About It is an agent skill from Abilityai/cornelius. Free-form thinking mode - consider a topic through successive distinct knowledge-base perspectives (hub lenses, original frameworks, wildcard distant notes). One perspective pass per invocation, state persists across runs, emits [[DONE]] when the exploration weaves together. Loop-compatible by design.
Its SKILL.md is about 2.3k tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.
It sits in Knowledge Management, covering Knowledge bases. The repository describes itself as: AI-powered second brain template for Claude Code + Obsidian. The licence is MIT.
7 steps, taken from the step headings in SKILL.md.
Read from SKILL.md and the folder at commit b9bea90. It shows what the files ask for, not the result of running them.
Pre-approves these tools, so the agent can use them without asking each time:
ReadWriteEditGrepGlobBashFrom allowed-tools in the SKILL.md frontmatter.
Shell commands in SKILL.md call:
python3From the folder's file list and the shell code blocks in SKILL.md.
No URLs in SKILL.md.
From URLs in SKILL.md, links to its own repository left out.
Names no API keys, tokens, secrets or passwords.
From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.
Think About It loads about 2.3k tokens when it runs. Until then it costs about 79 tokens; SKILL.md has 897 words of instructions outside code blocks.
Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.
The automated check noted patterns worth knowing about, such as sudo or a known installer.
allowed-tools: Read, Write, Edit, Grep, Glob, BashAutomated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.
The full file from Abilityai/cornelius at commit b9bea90, republished under its MIT licence (© Abilityai). 897 words, ~2,309 tokens.
.claude/skills/think-about-it/SKILL.md (or your agent's skills folder).Free-form counterpart to the incubation loop. No hypotheses, no confidence tracking, no fixed move rotation - just the same topic viewed through a different KB lens each pass, until the perspectives weave into something worth keeping.
Put Cornelius in open thinking mode on a topic. Where /incubation-loop converges on an answer to a question, /think-about-it circles a topic - each pass looks through one distinct perspective drawn from the knowledge base and writes down what that lens reveals, distorts, or contradicts. The exploration ends with a Weave: a synthesis of the threads and candidate permanent-note seeds.
This skill is designed to be driven by a loop (/loop, /trinity:loop, or manual re-invocation):
{{previous_response}} chaining and Until-mode sentinels work[[DONE]] appears in the reply if and only if the topic file's status is woven - tied to verifiable file state, not self-assessment[[DONE]] without writing anything| Source | Location | Read | Write | Description |
|---|---|---|---|---|
| Topic file | Brain/05-Meta/Thinking/Freeform/[slug].md | ✓ | ✓ | Perspective passes + frontmatter state |
| Local Brain Search | resources/local-brain-search/ | ✓ | Semantic search (--no-track) | |
| Permanent notes | Brain/02-Permanent/ | ✓ | Evidence + wildcard lens source | |
| MOCs | Brain/03-MOCs/ | ✓ | Hub lens grounding |
Deliberately NOT in THINKING-REGISTRY.md - freeform topics are invisible to the incubation loop. The two engines never touch each other's state. If a Weave concludes the topic deserves rigorous treatment, promote it manually via /manage-thinking-topics.
$ARGUMENTS = the topic, free text. Slugify to kebab-case.
date '+%Y-%m-%d'
ls "Brain/05-Meta/Thinking/Freeform/" 2>/dev/nullBrain/05-Meta/Thinking/Freeform/[slug].md missing → create it from the template below (pass_count: 0, status: exploring), then continue.[[DONE]]).status: woven → reply with the Weave summary and end with [[DONE]]. Write nothing.Read lenses_used from frontmatter. Choose exactly ONE unused lens from the deck:
Hub lenses (the KB's thematic centers of gravity): Dopamine & Motivation · Flow & Peak Performance · Buddhism & Consciousness · AI Agents & Architecture · Decision-Making & Biases · Identity & Belief Systems · Attention Economics
Framework lenses (the user's original frameworks - view the topic from inside one): Uncertainty-Dopamine-Belief Loop · The Folder Paradigm · Cross-Domain Consilience · External Anchor Principle · Self-Construction Stack · Three Gaps Framework · Four Pillars of Deep Agency · Safety as Velocity
Wildcard lens (auto-discovery style - a random permanent note from an unrelated cluster):
python3 -c "import random,glob; print(random.choice(glob.glob('Brain/02-Permanent/*.md')))"Re-roll once if the sampled note is obviously about the topic itself; otherwise the friction is the point.
Selection rules:
# --no-track: autonomous reads must not train q-values (learning hygiene, same as incubation-loop)
# read role: reasoning (contract: scope-mount) - the reasoning mount, so a lens can land on what the user has READ, not only what he wrote
BRAIN_READ_SCOPE=core,Books,document-insights python3 resources/local-brain-search/search.py "[topic] [lens core terms]" --limit 6 --mode spreading --no-track 2>/dev/null
BRAIN_READ_SCOPE=core,Books,document-insights python3 resources/local-brain-search/search.py "[lens core concept]" --limit 4 --mode spreading --no-track 2>/dev/nullRead the 3-4 most promising notes in full. These ground the pass - every pass must cite real notes, and a Books/ or Document Insights/ note is cited as encountered material, never as the user's view.
Write 2-4 paragraphs of actual free-form thinking: What does the topic look like from inside this lens? What does this lens make visible that previous passes missed? What does it distort or refuse to see? Capture analogies, tensions, reframings, open questions.
Append to the topic file:
### Pass [N]: Through the lens of [Lens Name] - YYYY-MM-DD
**Notes consulted:** [[Note A]], [[Note B]], [[Note C]]
**What this lens reveals:**
[2-4 paragraphs from Step 4]
**Threads pulled:**
- [tension / analogy / question worth keeping - 1 line each]
**Novelty:** high | medium | lowRate novelty honestly: high = a genuinely new thread appeared; medium = deepened an existing thread; low = mostly re-derived prior passes. The honest low is what lets the loop terminate.
Update frontmatter: pass_count, lenses_used, last_two_novelty, updated, updated_by.
Weave when EITHER:
pass_count >= 7, ORnovelty: low (the lenses have stopped paying)If weaving, append:
---
## The Weave
[3-6 paragraphs braiding the threads: the strongest cross-lens pattern, the contradiction
that stayed productive, what the topic turned out to actually be about]
**Candidate permanent-note seeds:**
- [2-3 one-line seeds that could become atomic notes]
**Promote to incubation?** [yes + suggested central question | no + why not]Set status: woven in frontmatter.
Pass N - lens: [lens]. [The single most interesting thread, 1-2 sentences.] Continuing.[[DONE]]The reply ends with [[DONE]] if and only if status is woven.
Remote (Trinity), Until mode - the demo shape:
/trinity:loop git pull --rebase, then run /think-about-it "<topic>", then commit and push;
relay the skill's reply verbatim — until done, max 10, every 30s(stop_signal: [[DONE]], max_runs: 10, delay_seconds: 30, timeout_per_run: 1200)
Local dynamic loop: /loop run /think-about-it "<topic>"; stop when the reply contains [[DONE]]
Manual: just invoke /think-about-it "<topic>" repeatedly; each call advances one pass.
---
created: YYYY-MM-DD
updated: YYYY-MM-DD
created_by: [model-name]
updated_by: [model-name]
agent_version: 01.25
topic: "[topic as given]"
pass_count: 0
lenses_used: []
last_two_novelty: []
status: exploring
---
# Thinking Freely: [Topic Title]
## Topic
[The topic as given, one sentence of framing if needed]
---
*[Perspective passes appended below by /think-about-it]*| Error | Recovery |
|---|---|
Freeform/ directory missing | Create it, continue |
| KB search returns empty | Retry with alternate terms from the lens; if still empty, ground the pass in the wildcard note alone and say so in the pass |
| All lenses in the deck used before weave | Force weave this pass regardless of novelty |
| Topic file corrupt / unparseable frontmatter | Rename to [slug]-corrupt-YYYY-MM-DD.md, recreate fresh, note the reset in the new file |
© Abilityai, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file
Just SKILL.md in .claude/skills/think-about-it of Abilityai/cornelius.
Open the folder on GitHubat commit b9bea90
Think About It next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.
| Skill | Stars | Used in | Tokens | Auto-check | Licence | Repo updated |
|---|---|---|---|---|---|---|
| Think About It this skillAbilityai/cornelius | 109 | — | ~2.3k | Automated safety check: Notes | MIT | |
| Capture Conversationoutline/outline | 41k | — | ~474 | Automated safety check: Pass | Custom licence | |
| Find And Citeoutline/outline | 41k | — | ~537 | Automated safety check: Pass | Custom licence | |
| Xhs Virtual Productchenjin-cmd/xhs-virtual-product | 726 | — | ~862 | Automated safety check: Pass | MIT | |
| OpenkbVectifyAI/OpenKB | 4.8k | 1 repos | ~2k | Automated safety check: Warn | Apache-2.0 | |
| Learn From Materialsdmoshehun-prog/learn-from-materials | 937 | — | ~7.9k | Automated safety check: Pass | MIT |
outline/outline
Save the current conversation, a decision, or a set of notes as a document in an Outline collection; use when the user wants to keep what was discussed in their knowledge base.
outline/outline
Answer questions from the Outline knowledge base with quotes and links to the source documents; use when the user asks what the team knows, documented, or decided about a topic.
chenjin-cmd/xhs-virtual-product
This skill helps plan, select, produce, and market Xiaohongshu (RED) virtual/digital products — templates, knowledge bases, test tools, study materials.
VectifyAI/OpenKB
A skill your agent uses when the user asks about content in their OpenKB knowledge base — research topics, concepts compiled from their documents, cross-document synthesis — or mentions openkb, an…
dmoshehun-prog/learn-from-materials
Turns books, PDFs, slides and web pages into a source-grounded knowledge base and an interactive learning page in English or Chinese, with quizzes, relationship maps and reusable methodology notes.
onyx-dot-app/onyx
Query the Onyx knowledge base using the onyx-cli command. An agent skill from onyx-dot-app/onyx.
Abilityai/cornelius
Generate images using Google's Nano Banana (Gemini 2.5 Flash Image).
Abilityai/cornelius
Systematic benchmarking framework for Local Brain Search memory system with LLM-as-judge scoring
Abilityai/cornelius
Protocol for creating dated changelog files after significant agent sessions.
Abilityai/cornelius
Create long-form articles from knowledge base insights. An agent skill from Abilityai/cornelius.
Abilityai/cornelius
Structure a decision, not just advise on it. An agent skill from Abilityai/cornelius.
Abilityai/cornelius
Framework for distinguishing research findings from hypotheses and speculative synthesis.
Categories
Free-form thinking mode - consider a topic through successive distinct knowledge-base perspectives (hub lenses, original frameworks, wildcard distant notes). Think About It is an agent skill from Abilityai/cornelius. Free-form thinking mode - consider a topic through successive distinct knowledge-base perspectives (hub lenses, original frameworks, wildcard distant notes).
Think About It fits situations like: tasks that involve Knowledge bases.
Run `npx skills add Abilityai/cornelius --skill think-about-it -a claude-code`. Or copy the skill folder (.claude/skills/think-about-it in Abilityai/cornelius) into .claude/skills/think-about-it in your project. Claude Code loads it when a task matches its description.
Run `npx skills add Abilityai/cornelius --skill think-about-it -a codex`. Or copy the skill folder (.claude/skills/think-about-it in Abilityai/cornelius) into .agents/skills/think-about-it in your project. Codex loads it when a task matches its description.
Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add Abilityai/cornelius --skill think-about-it -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/think-about-it, .gemini/skills/think-about-it, .github/skills/think-about-it and .opencode/skills/think-about-it in your project.
Going by SKILL.md and its folder, Think About It needs the command-line tools its instructions call (python3). Our summary lists: Python 3. Its frontmatter pre-approves these tools: Read, Write, Edit, Grep, Glob, Bash.
SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.
Our automated static check of SKILL.md found notes only (pre-approves every shell command (allowed-tools: bash)), nothing it rates as a warning. It is not a guarantee. Review the folder before installing.
Think About It is published under the MIT licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.
About 2.3k tokens (SKILL.md is roughly 9.2k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.
Skills that share tags, products or a category with Think About It: Capture Conversation (outline/outline, 41k stars), Find And Cite (outline/outline, 41k stars), Xhs Virtual Product (chenjin-cmd/xhs-virtual-product, 726 stars) and Openkb (VectifyAI/OpenKB, 4.8k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Abilityai (a GitHub organization) maintains it in Abilityai/cornelius, which has 109 GitHub stars. The repository holds 54 skills in this directory. The repository was last updated on October 8, 2026.
Source: Abilityai/cornelius on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.