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SecondBrain: Skill for Claude Code

.claude/skills/speckit-implement/SKILL.md

speckit-implement is a skill for Claude Code from PieroSierra/SecondBrain. It costs 20 tokens per session (2,827 once invoked), scanned A, original, no licence file.

An implementation step that carries out every task listed in a file named tasks.md. An implementation plan is a written list of the work needed to build a feature.

In plain words
What is it for?
Use it after creating an implementation plan to process its listed development tasks.
Why use it?
It removes the need to run the planned tasks one by one manually.

Skill for Claude Code

Written for Claude Code: disable-model-invocation in frontmatter.

This is PieroSierra/SecondBrain's own configuration. It tells Claude Code how to work on SecondBrain 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 SecondBrain configures →

not rated 159repo +1 1mo ago A scan 20 tokens no licence
View source ↗ PieroSierra/SecondBrain
Reuse

Borrowing it

Nothing to install: this file belongs to PieroSierra/SecondBrain. 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/PieroSierra/SecondBrain/main/.claude/skills/speckit-implement/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/PieroSierra/SecondBrain

Made for: Claude Code.

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 speckit-implement

README.md
[![agentmods](https://agentmods.dev/badge/skills/pierosierra/secondbrain/speckit-implement/github.svg)](https://agentmods.dev/skills/pierosierra/secondbrain/speckit-implement)
Your own site
<a href="https://agentmods.dev/skills/pierosierra/secondbrain/speckit-implement"><img src="https://agentmods.dev/badge/skills/pierosierra/secondbrain/speckit-implement/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 speckit-implement

Your own site · 80×15
<a href="https://agentmods.dev/skills/pierosierra/secondbrain/speckit-implement"><img src="https://agentmods.dev/badge/skills/pierosierra/secondbrain/speckit-implement.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 20 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,827 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 $0.00020 $0.02827
Opus 5.5 $0.00008 $0.01131
Sonnet 5.5 $0.00004 $0.00565
Haiku 4.5 $0.00002 $0.00283

Measured 2mo ago against content hash 87b0ae645319, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

speckit-implement 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.

.claude/skills/speckit-implement/SKILL.md · 210 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 · 210 lines · 20 tokens per session scan A 87b0ae645319

Subscribe to this mod's changes

speckit-implement is a skill published in the GitHub repository PieroSierra/SecondBrain (159 stars, last pushed 1mo ago), with no licence file. It adds 20 tokens to every session and 2,827 once invoked, about $0.0001 per session on Opus 5.5. 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.

Planning
Related

speckit-implement compared with skills from other repositories

speckit-implement next to 6 skills from other repositories
ModTypeStarsLast pushLicenceScanTokensWorks with
speckit-implementPieroSierra/SecondBrainSkill1591mo agononeA20Claude Code
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.jsSkill143ktodayMITA95Claude Code
next-partial-prefetching-adoptionvercel/next.jsSkill143ktodayMITA103Claude Code