Is writing-skills safe to install?

No known risky patterns found. The scan covers prompt injection, hidden Unicode, remote code execution and credential access in every text file of the skill. It cannot judge intent, so read any flagged line in context before installing.

How was this score calculated?

Four checks of 25 points each: spec, efficiency, clarity and security. Findings take points off the check they belong to, and any critical finding caps the grade at F. The same scanner runs in your browser at proskills.dev/scan.

Is this report current?

It was made from commit bb92a77 on 2026-10-16. If the skill has changed since, paste the new version into the scanner for a fresh score.

I wrote this skill. Can I fix the score or have the page removed?

Fix the findings and push. The reports are rebuilt from GitHub on a schedule, so the next run picks the change up. To have the page removed, open an issue on the ProSkills GitHub repo.

Scan reports · obra/superpowers

writing-skills: scan report

Use when creating new skills, editing existing skills, or verifying skills work before deployment An automated scan of this public skill from obra/superpowers: security, token cost, spec and clarity, with every finding and its fix.

Verdict

No known risky patterns found

Nothing in the skill matched the scanner's security rules: no instruction overrides, hidden characters, remote code or credential access.

writing-skillsScan 63/100Grade D

obra/superpowers/skills/writing-skills at bb92a77

Spec 13 · Efficiency 4 · Clarity 21 · Security 25 (each out of 25)

Always loaded 28 tokens · on trigger 6,596 · on demand 18,714

eff/body-lines warn · SKILL.mdSKILL.md body is 678 lines; keep it under 500 and move detail into reference files.
eff/body-tokens warn · SKILL.md~6596 tokens load every time this triggers. Aim for under 5,000; split into reference files read on demand.
spec/broken-ref warn · SKILL.md:12References ../using-superpowers/references/codex-tools.md, which isn't in the skill folder.
spec/broken-ref warn · SKILL.md:12References ../using-superpowers/references/gemini-tools.md, which isn't in the skill folder.
spec/broken-ref warn · SKILL.md:374References scripts/tool.sh, which isn't in the skill folder.
clarity/unfinished warn · SKILL.md:631Unfinished marker "todo".
eff/orphan-file info · anthropic-best-practices.mdanthropic-best-practices.md is never mentioned in SKILL.md, so the agent won't know to read it.
eff/orphan-file info · examples/CLAUDE_MD_TESTING.mdexamples/CLAUDE_MD_TESTING.md is never mentioned in SKILL.md, so the agent won't know to read it.
eff/orphan-file info · persuasion-principles.mdpersuasion-principles.md is never mentioned in SKILL.md, so the agent won't know to read it.

Source

Fact	Value
Repository	obra/superpowers
Skill folder	skills/writing-skills
Stars	300,559
License	MIT
Commit scanned	bb92a77
Scanned	2026-10-16
Files	6

ProSkills doesn't host or redistribute this skill. Get it from its repository, and check the license before reusing it. Something wrong here? Open an issue for a rescan or removal.

Badge for the README

If you maintain this skill, this badge shows its score and links to this report. Fix findings and the score moves with the next scan.

[![ProSkills scan 63/100](https://proskills.dev/badge?score=63)](https://proskills.dev/reports/obra-writing-skills)

Scanned alternatives on ProSkills

Skills in the ProSkills catalog that cover similar ground. Every one passes the same scanner before it ships.

Test Writer$9Scan 100/1005 rules · Code ReviewTests that fail before the fix and pass after.Loads when the user needs tests for new code or a bug fix.

More from obra/superpowers

Skill	Scan	Grade
brainstorming	81/100	B
diagnosing-superpowers	80/100	B
dispatching-parallel-agents	100/100	A
executing-plans	92/100	A
finishing-a-development-branch	100/100	A
receiving-code-review	96/100	A
requesting-code-review	96/100	A
subagent-driven-development	78/100	C
systematic-debugging	75/100	C
test-driven-development	100/100	A
using-git-worktrees	100/100	A
using-superpowers	87/100	B

Questions

Is writing-skills safe to install?: No known risky patterns found. The scan covers prompt injection, hidden Unicode, remote code execution and credential access in every text file of the skill. It cannot judge intent, so read any flagged line in context before installing.
How was this score calculated?: Four checks of 25 points each: spec, efficiency, clarity and security. Findings take points off the check they belong to, and any critical finding caps the grade at F. The same scanner runs in your browser at proskills.dev/scan.
Is this report current?: It was made from commit bb92a77 on 2026-10-16. If the skill has changed since, paste the new version into the scanner for a fresh score.
I wrote this skill. Can I fix the score or have the page removed?: Fix the findings and push. The reports are rebuilt from GitHub on a schedule, so the next run picks the change up. To have the page removed, open an issue on the ProSkills GitHub repo.

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