superskill

superskill is a skill for Claude Code from permanu/superskill. It costs 54 tokens per session (1,029 once invoked), scanned A, original, Apache-2.0.

A shared project-memory skill that stores project context, decisions, lessons, tasks, and session status for coding agents.

In plain words
What is it for?
Use it at the start and end of sessions, before major decisions or reviews, and to record durable decisions, learnings, and follow-up tasks.
Why use it?
It helps agents avoid repeating past mistakes, coordinate concurrent work, and make plans based on the project's recorded history.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin. Also seen: mentions Claude Code; mentions OpenCode.

Part of the superskill plugin — 1 skill, 4 commands, 1 MCP server shipped together

Good fit Use it at the start and end of sessions, before major decisions or reviews, and to record durable decisions, learnings, and follow-up tasks.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/permanu/superskill/superskill
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.

Any agent
npx skills add permanu/superskill --skill superskill
Clone the repo
git clone --depth 1 https://github.com/permanu/superskill

Made for: Claude Code.

Or install superskill, the plugin that ships this one along with the rest of its 1 skill, 4 commands, 1 MCP server.

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 superskill

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

Your own site · 80×15
<a href="https://agentmods.dev/skills/permanu/superskill/superskill"><img src="https://agentmods.dev/badge/skills/permanu/superskill/superskill.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 54 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,029 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 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 5.1 $0.00054 $0.01029
Opus 5.5 $0.00022 $0.00412
Sonnet 5.5 $0.00011 $0.00206
Haiku 4.5 $0.00005 $0.00103

Measured 6d ago against content hash 346f9fe0ea5a, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

superskill 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 6d 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.

skills/superskill/SKILL.md · 37 lines

How it starts

The opening of the file, as written. The whole thing — 37 lines — stays where its author put it; the contents beside it link to each section on GitHub.

SuperSkill

SuperSkill is a consumer skill for a host-configured superskill MCP server, not a standalone API or offline service. Use only tool names actually exposed by the host: OpenCode Code Mode uses tools.superskill.<tool>, while Claude Code exposes mcp__superskill__<tool>. Other hosts may differ; never guess or mechanically rewrite a tool name. If a tool is unavailable, report that or use an already-installed CLI after verifying it with superskill --help. Do not install tools or use npx unless network use is explicitly approved.

Scope and authorization

  • Treat a coding request as authorization for its specified project and changes only. Establish the actual checkout and project; never guess a project slug. If mapping is needed for authorized work, call register with the absolute checkout path and use its returned slug.
  • Session registration and completion are coordination bookkeeping for authorized nontrivial code work; completion persists a session note. This does not authorize additional ADRs, learnings, tasks, or reports unless requested or required by project policy.
  • Keep data scoped to the named project; access other project history only with explicit scope and authorization. Redact prompt text by default; use include_prompts only for bounded excerpts from the current project when explicitly requested and needed. Never expose secrets, credentials, or unrelated history.
  • Do not infer permission for network access, installs, global configuration, fixes, dismissals, manual cleanup/cache apply/GC, publishing, or destructive changes. The built-in session-maintenance preservation path below is the exception; preview manual actions and proceed only with explicit authorization.

Workflow

  • Use the smallest workflow that fits. Simple questions and read-only lookups need no session, plan, HLD/LLD, or human-question ritual; ask only when scope, authorization, or risk is genuinely unclear.
  • For nontrivial authorized code work, load project_context and search relevant project notes before planning. Register once with the session tool using action: "register", tool, project, and absolute workspace_path; retain session_id.
  • Route with superskill using task, repo-relative files, session_id, workspace_path, and phase (explore|implement|review|ship). Reuse the same session; reroute when task, files, or phase meaningfully change. Complete that session with the outcome and verification evidence.
  • Inspect the returned worktree assessment. Use worktree_env before installs/builds. Built-in session maintenance may automatically quarantine or relocate eligible clean, idle, session-owned checkouts after session completion once they are proven integrated into the repository's actual default branch; it preserves the whole checkout in a locked recovery archive, returns recovery metadata, and never deletes it. An assessment alone does not authorize manual actions. Manual cleanup, cache apply/GC, permanent removal, policy/config changes, and installs require explicit authorization; never force-remove a checkout.

Read the full file on GitHub · 37 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. 6d ago Changed · -9 lines · -10 tokens per session 346f9fe0ea5a
  2. 9d ago Changed · +12 lines · +15 tokens per session 4ecaa97eeeb4
  3. 13d ago Changed · +10 lines b6f4cec20d98
  4. 14d ago First seen · 24 lines · 49 tokens per session scan A 1d60687f0f97

Subscribe to this mod's changes

superskill is a skill published in the GitHub repository permanu/superskill (18 stars, last pushed 2d ago), licensed Apache-2.0. It adds 54 tokens to every session and 1,029 once invoked, about $0.0002 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 2026-10-05.