Repository

Abilityai/cornelius agent skills

Every skill in the Abilityai/cornelius repository on GitHub, ranked by score, with the commands to install them.
skills
51
GitHub stars
109

GitHub description: “AI-powered second brain template for Claude Code + Obsidian”

Stars
109 (35 forks)
Licence
MIT
Last push
Sep 2026
Created
Nov 2025

Install all skills

skills CLI (any agent)
npx skills add Abilityai/cornelius

Add --skill <name> for a single skill and -a <agent> to choose the agent (see the agent guides).

Skills in Abilityai/cornelius, ranked

Ranked by score. Sort bymost stars,trending,newest,recently updated

Skills in Abilityai/cornelius, ranked
#SkillRepositoryStarsUsed inTokensAuto-checkLicenceUpdated
1

Generate images using Google's Nano Banana (Gemini 2.5 Flash Image).

Abilityai/cornelius109—~1.2kAutomated safety check: NotesMIT16 days ago
2

Protocol for creating dated changelog files after significant agent sessions.

Abilityai/cornelius109—~555Automated safety check: PassMIT16 days ago
3

Create long-form articles from knowledge base insights. An agent skill from Abilityai/cornelius.

Abilityai/cornelius109—~2.1kAutomated safety check: NotesMIT16 days ago
4

Framework for distinguishing research findings from hypotheses and speculative synthesis.

Abilityai/cornelius109—~1.5kAutomated safety check: PassMIT16 days ago
5

Extract the transcript from a YouTube video by URL or video ID.

Abilityai/cornelius109—~525Automated safety check: NotesMIT16 days ago
6

Standard format for capturing and documenting insights in the knowledge base.

Abilityai/cornelius109—~616Automated safety check: PassMIT16 days ago
7

Extract chapters from PDF, MOBI, and AZW3 book files into individual markdown files.

Abilityai/cornelius109—~872Automated safety check: NotesMIT16 days ago
8

Run self-diagnostics on Cornelius agent to verify skills, commands, agents, and integrations are working.

Abilityai/cornelius109—~2.8kAutomated safety check: NotesMIT16 days ago
9

Conversational partner mode - delegates each exchange to the thinking-partner sub-agent, which embodies the knowledge base as its own memory and engages as an intellectual equal.

Abilityai/cornelius109—~834Automated safety check: PassMIT16 days ago
10

Extract all chapters from an EPUB file into separate markdown files.

Abilityai/cornelius1091 repo~351Automated safety check: PassMIT16 days ago
11

Compare and selectively merge Brain directories across any two agent instances.

Abilityai/cornelius1091 repo~1.6kAutomated safety check: NotesMIT16 days ago
12

Solve problems using knowledge base insights - extracts search terms, runs parallel KB queries, synthesizes advice grounded in your own frameworks

Abilityai/cornelius109—~873Automated safety check: NotesMIT16 days ago
13

Autonomous AI crystallization - synthesizes converged thinking topics into ai-inferred notes in a dedicated folder.

Abilityai/cornelius109—~2.9kAutomated safety check: NotesMIT16 days ago
14

Analyze knowledge base structure and update the knowledge-base-analysis.md report

Abilityai/cornelius109—~1.3kAutomated safety check: NotesMIT16 days ago
15

Discover non-obvious cross-domain connections through random sampling and pattern analysis

Abilityai/cornelius109—~1.3kAutomated safety check: NotesMIT16 days ago
16

Systematic benchmarking framework for Local Brain Search memory system with LLM-as-judge scoring

Abilityai/cornelius109—~2.4kAutomated safety check: NotesMIT16 days ago
17

Run a full coherence sweep across the Brain Dependency Graph - computes staleness, lifecycle transitions, structural health, and generates a report

Abilityai/cornelius109—~627Automated safety check: NotesMIT16 days ago
18

Compute lifecycle scores for all insight and framework notes - detect which notes are crystallizing or becoming generative

Abilityai/cornelius109—~447Automated safety check: NotesMIT16 days ago
19

Generate explanatory diagrams and infographics that visually communicate concepts.

Abilityai/cornelius109—~2.8kAutomated safety check: NotesMIT16 days ago
20

Detect productive contradictions between notes - high semantic similarity with opposing conclusions that represent synthesis opportunities

Abilityai/cornelius109—~1.1kAutomated safety check: NotesMIT16 days ago
21

Extract insights from external documents (research papers, books, articles).

Abilityai/cornelius109—~649Automated safety check: PassMIT16 days ago
22

Discover hidden connections and relationships between notes in the knowledge base

Abilityai/cornelius109—~2.8kAutomated safety check: NotesMIT16 days ago
23

Extract the user's perspective on a topic (called by a content agent or user)

Abilityai/cornelius109—~864Automated safety check: PassMIT16 days ago
24

Stage, commit, and push changes to remote repository with approval gate

Abilityai/cornelius109—~793Automated safety check: NotesMIT16 days ago
25

Review and graduate notes to permanent status using Zettelkasten principles.

Abilityai/cornelius109—~2kAutomated safety check: NotesMIT16 days ago
26

Fully autonomous end-to-end ingestion of a SINGLE source (book, paper, article, transcript) into the knowledge base - prepare to markdown, extract insights against the live index, refresh the index…

Abilityai/cornelius109—~4.3kAutomated safety check: NotesMIT16 days ago
27

KB-grounded Socratic interview. An agent skill from Abilityai/cornelius.

Abilityai/cornelius109—~1.6kAutomated safety check: NotesMIT16 days ago
28

Find notes created in the last 14 days and discover their connections to the knowledge base

Abilityai/cornelius109—~966Automated safety check: NotesMIT16 days ago
29

Continuous learning heartbeat - autonomously researches, extracts insights, and expands knowledge base

Abilityai/cornelius109—~5kAutomated safety check: NotesMIT16 days ago
30

Upsert and maintain entity notes in a REFERENCE-kind scope (external facts/records), then reindex so they become connection/insight targets.

Abilityai/cornelius109—~1.8kAutomated safety check: NotesMIT16 days ago
31

Manage the incubation loop topic lifecycle — seed new questions, review status, crystallize converged conclusions, and retire stale topics

Abilityai/cornelius109—~3.9kAutomated safety check: NotesMIT16 days ago
32

Manage domain-watch surveillance configs — seed new domains, review scan status and proposals, activate Watch Log proposals into thinking topics, pause domains, and update PIRs or watch queries

Abilityai/cornelius109—~3.5kAutomated safety check: NotesMIT16 days ago
33

Propagate staleness from a changed note through the Brain Dependency Graph - shows which downstream notes need review

Abilityai/cornelius109—~455Automated safety check: NotesMIT16 days ago
34

Fast knowledge base retrieval - single FAISS search + graph connections, no subagents or LLM orchestration

Abilityai/cornelius109—~465Automated safety check: NotesMIT16 days ago
35

Retrieve relevant knowledge from Obsidian vault using 3-layer semantic search based on conversation context

Abilityai/cornelius109—~858Automated safety check: NotesMIT16 days ago
36

Integrity report for a reference scope — the reference-scope analog of /coherence-sweep.

Abilityai/cornelius109—~1.8kAutomated safety check: NotesMIT16 days ago
37

Bridge reference entities to the cognitive knowledge base — "this client maps to that insight you had." A thin mode over connection-finder that mounts core,Company/<sub and surfaces entity↔insight…

Abilityai/cornelius109—~2.2kAutomated safety check: NotesMIT16 days ago
38

The single entry point for incoming information of ANY kind about a reference entity (a person, org, product, engagement, or watched competitor).

Abilityai/cornelius109—~2.4kAutomated safety check: NotesMIT16 days ago
39

Structured, temporal lookup against a reference scope — "what do we know about Acme Corp as of today?", "which engagements are active and expiring in 90 days?", "list our competitors".

Abilityai/cornelius109—~1.2kAutomated safety check: NotesMIT16 days ago
40

Keep a reference scope canonical and internally consistent. An agent skill from Abilityai/cornelius.

Abilityai/cornelius109—~2kAutomated safety check: NotesMIT16 days ago
41

Mechanical staleness sweep over a reference scope. An agent skill from Abilityai/cornelius.

Abilityai/cornelius109—~1.3kAutomated safety check: NotesMIT16 days ago
42

Handle a validity transition on a reference entity — a contract renewal, role change, or re-termed price where a full prior snapshot matters.

Abilityai/cornelius109—~1.2kAutomated safety check: NotesMIT16 days ago
43

Rebuild the Local Brain Search FAISS index to reflect vault changes

Abilityai/cornelius109—~1.5kAutomated safety check: NotesMIT16 days ago
44

Wrapper for scheduled playbooks - handles git sync before and after execution

Abilityai/cornelius109—~1.4kAutomated safety check: NotesMIT16 days ago
45

Quick search across Obsidian vault using keywords or semantic similarity

Abilityai/cornelius109—~557Automated safety check: NotesMIT16 days ago
46

Orientation guide - introduces Cornelius, its core capabilities, main use cases, and the abilities marketplace

Abilityai/cornelius109—~1.8kAutomated safety check: PassMIT16 days ago
47

Combine multiple insights into coherent narrative. An agent skill from Abilityai/cornelius.

Abilityai/cornelius109—~1.7kAutomated safety check: PassMIT16 days ago
48

Comprehensive testing playbook for Local Brain Search memory improvements (Phases 1, 3, 4)

Abilityai/cornelius109—~3.4kAutomated safety check: NotesMIT16 days ago

Questions, answered from the data.

What is the best skill in Abilityai/cornelius?

Nano Banana Image Generator from Abilityai/cornelius ranks first of the 51 skills in Abilityai/cornelius listed here, with the highest score: its repository has 109 GitHub stars, its SKILL.md loads about 1.2k tokens and it has informational notes only in the automated safety check. Next come Changelog Protocol and Create Article.

Are the skills in Abilityai/cornelius official?

None yet. All 51 skills in Abilityai/cornelius listed here come from community repositories; a skill counts as official when the product's own GitHub organization publishes it.

How do I install all skills from Abilityai/cornelius?

Run npx skills add Abilityai/cornelius in your project: the open-source skills CLI installs the repository's skills into your coding agent's skills folder. To install a single skill, open its page here for the exact command.

How are these skills ranked?

By Skill Navigator score, which combines the GitHub stars of the skill's repository (shared across that repo's skills and discounted for large collections), how many other GitHub owners carry a copy of the skill, and automated SKILL.md quality checks, minus penalties for safety-check warnings and for each further skill from the same repository. Skills that fail the safety check are not listed.