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second-brain-template: Skill for Claude Code

.agents/skills/synthesize-topic/SKILL.md

synthesize-topic is a skill for Claude Code, Codex from ek0212/second-brain-template. It costs 0 tokens per session (166 once invoked), scanned A, original, no licence file.

A workflow for creating or updating a topic page from multiple notes.

In plain words
What is it for?
Use it when building a new topic page or bringing an existing one up to date.
Why use it?
It helps combine scattered notes into one refreshed page about a topic.

Skill for Claude CodeCodex

Which agent this was written for is unclear — body not stored (licence); the path alone says nothing. Also seen: installed under .agents/ (shared by several agents).

This is ek0212/second-brain-template's own configuration. It tells Claude Code and Codex how to work on second-brain-template itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything second-brain-template configures →

not rated 23repo 3mo ago A scan 0 tokens no licence
View source ↗ ek0212/second-brain-template
Reuse

Borrowing it

Nothing to install: this file belongs to ek0212/second-brain-template. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/ek0212/second-brain-template/main/.agents/skills/synthesize-topic/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/ek0212/second-brain-template

Made for: Claude Code, Codex.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for synthesize-topic

README.md
[![agentmods](https://agentmods.dev/badge/skills/ek0212/second-brain-template/synthesize-topic/github.svg)](https://agentmods.dev/skills/ek0212/second-brain-template/synthesize-topic)
Your own site
<a href="https://agentmods.dev/skills/ek0212/second-brain-template/synthesize-topic"><img src="https://agentmods.dev/badge/skills/ek0212/second-brain-template/synthesize-topic/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for synthesize-topic

Your own site · 80×15
<a href="https://agentmods.dev/skills/ek0212/second-brain-template/synthesize-topic"><img src="https://agentmods.dev/badge/skills/ek0212/second-brain-template/synthesize-topic.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 0 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 166 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin unknown 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 5.1 $0.00000 $0.00166
Opus 5.5 $0.00000 $0.00066
Sonnet 5.5 $0.00000 $0.00033
Haiku 4.5 $0.00000 $0.00017

Measured 2mo ago against content hash 6b03c978a429, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

synthesize-topic 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 2mo 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.

.agents/skills/synthesize-topic/SKILL.md · 43 lines

The source is not reproduced here

No licence file

A repository with no LICENSE is all rights reserved by default, so the body is not copied here. The metadata, the measurements and the link are.

Read it on GitHub

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. 2mo ago First seen · 43 lines · 0 tokens per session scan A 6b03c978a429

Subscribe to this mod's changes

synthesize-topic is a skill published in the GitHub repository ek0212/second-brain-template (23 stars, last pushed 3mo ago), with no licence file. It costs nothing until one of its globs matches a file; then it loads 166 tokens. 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.

ResearchWriting and docs
Related

synthesize-topic compared with skills from other repositories

synthesize-topic next to 6 skills from other repositories
ModTypeStarsLast pushLicenceScanTokensWorks with
synthesize-topicek0212/second-brain-templateSkill233mo agononeA0Claude Code, Codex
imagegenopenai/codexSkill133kyesterdayApache-2.0A113Codex
playwright-climicrosoft/playwrightSkill99kyesterdayApache-2.0A19Claude Code
local-ai-agentsmicrosoft/ai-agents-for-beginnersSkill79k4d agoMITA200Claude Code, Codex
systematic-debuggingobra/superpowersSkill313k3d agoMITA21Claude Code
next-cache-components-adoptionvercel/next.jsSkill143kyesterdayMITA95Claude Code
next-partial-prefetching-adoptionvercel/next.jsSkill143kyesterdayMITA103Claude Code