spec-writer
The Spec Writer specialist for Headout's PM OS. Use this skill to write a full, production-ready PRD for any feature, experiment, or product change at Headout. This is not a template filler — it is a deliberate, scenario-forcing, hypothesis-anchored spec writer that produces documents detailed enough for an engineering agent (Cursor / Plato) to implement from and rigorous enough to pass Atish's L1 review gate. Trigger this skill whenever a PM needs to write a spec, PRD, or requirements doc. Also trigger when a PM says "I want to document this feature", "can you write up the requirements for X", "help me write a PRD", or when a Problem Frame + any additional inputs (data insights, prototype) are ready to be turned into a formal spec. The Spec Writer prefers a Problem Frame as input. If none exists, the skill will run a compressed problem-framing pass before writing — it never writes a spec without first establishing why we're doing this, what the objective is, and how success will be measured. The output follows Headout's standard PRD template (Problem Alignment → Solution → Execution Plan → Open Questions → Working Log → Change Log).
Security
1 medium severity finding. This skill can be installed but you should review these findings before use.
W021: Hidden or invisible Unicode characters detected (potential obfuscation or prompt injection)
What this means
Detected hidden or invisible Unicode characters (Format/Cf or Control/Cc categories) in the component’s content. These characters are invisible when rendered but are still processed by AI models, and attackers use them to smuggle instructions past human review — for example, zero-width spaces, bidirectional overrides, invisible formatters, or Unicode Tag characters (U+E0000–U+E007F) that encode an entire hidden message. Severity escalates to high when three or more distinct hidden character types are present, or when a hidden tag-encoded message is successfully decoded, as these strongly indicate intentional obfuscation.
Why it was flagged
Hidden Unicode characters detected (1 type(s) found)
- Repository
- headout/pm-os-marketplace
- Commit
d8db811
- Audited
- Security analysis
Is this your skill?
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