learn

A research skill that gathers online sources about a subject and turns them into a learning guide. It supports brief, medium, and deep research levels.

In plain words
What is it for?
Use it to research a subject, study a new area, create a learning guide, or build a searchable knowledge base.
Why use it?
It gives you an organized way to learn a topic from multiple sources instead of collecting information manually.

Skill for Claude CodeCodex

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods
npx agentmods add skills/agent-sh/agentsys/learn
Any agent
npx skills add agent-sh/agentsys --skill learn
Clone the repo
git clone --depth 1 https://github.com/agent-sh/agentsys

Made for: Claude Code, Codex.

Per session 39 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,198 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5 $0.00039 $0.02198
Opus 5 $0.00019 $0.01099
Sonnet 5 $0.00008 $0.00440
Haiku 4.5 $0.00004 $0.00220

Measured 2d ago against content hash acceb5ab1d3c, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

learn scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 2d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

.kiro/skills/learn/SKILL.md · 349 lines

How it starts

The opening of the file, as written. The whole thing — 349 lines — stays where its author put it; the contents beside it link to each section on GitHub.

learn

Research any topic by gathering online resources and creating a comprehensive learning guide with RAG-optimized indexes.

Parse Arguments

const args = '$ARGUMENTS'.split(' ').filter(Boolean);
const depth = args.find(a => a.startsWith('--depth='))?.split('=')[1] || 'medium';
const topic = args.filter(a => !a.startsWith('--')).join(' ');

Input

Arguments: <topic> [--depth=brief|medium|deep]

  • topic: Subject to research (required)
  • --depth: Source gathering depth
    • brief: 10 sources (quick overview)
    • medium: 20 sources (default, balanced)
    • deep: 40 sources (comprehensive)

Research Methodology

Based on best practices from:

  • Anthropic's Context Engineering
  • DeepLearning.AI Tool Use Patterns
  • Anara's AI Literature Reviews

1. Progressive Query Architecture

Use funnel approach to avoid noise from long query lists:

Broad Phase (landscape mapping):

"{topic} overview introduction"
"{topic} documentation official"

Focused Phase (core content):

"{topic} best practices"
"{topic} examples tutorial"
"{topic} site:stackoverflow.com"

Deep Phase (advanced, if depth=deep):

"{topic} advanced techniques"
"{topic} pitfalls mistakes avoid"
"{topic} 2025 2026 latest"

2. Source Quality Scoring

Multi-dimensional evaluation (max score: 100):

Factor Weight Max Criteria
Authority 3x 30 Official docs (10), recognized expert (8), established site (6), blog (4), random (2)
Recency 2x 20 <6mo (10), <1yr (8), <2yr (6), <3yr (4), older (2)
Depth 2x 20 Comprehensive (10), detailed (8), overview (6), superficial (4), fragment (2)
Examples 2x 20 Multiple code examples (10), one example (6), no examples (2)
Uniqueness 1x 10 Unique perspective (10), some overlap (6), duplicate content (2)

Selection threshold: Top N sources by score (N = depth target)

3. Just-In-Time Retrieval

Don't pre-load all content (causes context rot):

Read the full file on GitHub · 349 lines

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 2d ago First seen · 349 lines · 39 tokens per session scan A acceb5ab1d3c

Subscribe to this mod's changes

learn is a skill published in the GitHub repository agent-sh/agentsys (980 stars, last pushed 5d ago), licensed MIT. It adds 39 tokens to every session and 2,198 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

Related

Other skills, from other repositories

hive.browser-automation

Required before any hive-browser CLI command. The browser is driven from the terminal by running hive-browser ... --json via terminalexec — not via MCP tools. Teaches the browser lifecycle rules (the bridge attaches to the USER'S running Chrome — never kill or launch browser processes; timeouts are transport issues…

aden-hive/hive · 142 tokens

hive.worker-delegation

Concrete patterns for breaking colony work into parallel worker jobs via runplaybook — when fan-out helps, how to model the goal as a tracker table, write the worker skill, author the playbook, pilot, and let convergence retry/resume the gap.

aden-hive/hive · 58 tokens

hive.linkedin-automation

Read before automating LinkedIn with browser tools. LinkedIn combines shadow DOM (#interop-outlet), strict Trusted Types CSP that silently drops innerHTML, Lexical composer, native beforeunload dialogs that hang the bridge, and aggressive spam filters — each has bitten us at least once. Verified flows for profile…

aden-hive/hive · 99 tokens

hive.x-automation

Read before automating X / Twitter with browser tools. Verified flows for post, reply, delete, search-and-engage, plus the Draft.js compose quirks that silently disable the send button. Includes the daily-reply and job-market-reply playbooks. Requires hive.browser-automation for the underlying screenshot + coordinate…

aden-hive/hive · 81 tokens

hive.slack-notifications-setup

Set up a Slack notification channel (Sentinel) for a colony by driving the browser — reuse or create the "Hive Sentinel" Slack app from a JSON manifest, install it, capture the bot + app tokens, create/select the channel via the Slack API, and turn Sentinel on so the colony can ping the user on Slack and accept…

aden-hive/hive · 136 tokens

hive.writing-hive-skills

Author a new Agent Skill for a Hive agent that conforms to the Agent Skills specification (SKILL.md with YAML frontmatter, optional scripts/references/assets directories). Use when the user asks to create, scaffold, add, or package a new skill for a Hive agent.

aden-hive/hive · 63 tokens