Individual skill

crypto-protocol-diagram

Use when asked for a sequence diagram of cryptographic protocol semantics from code, prose, RFCs, papers, ProVerif, or Tamarin, or for code/spec divergence. Not for architecture: use diagramming-code.

.devin/skills/crypto-protocol-diagram/SKILL.md

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Last checked: Nov 4, 2026

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Repository stars (not skill ratings): 55
Repository last updated: Sep 28, 2026
License: Apache-2.0

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SKILL.mdcore · 8,921 bytes
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agents/openai.yamlasset · 276 bytes
references/spec-extraction.mddoc · 2,299 bytes

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# Crypto protocol diagram

## Contract

| Field | Bound contract |
|---|---|
| Trigger | The user asks to extract cryptographic protocol semantics from source code, prose, RFCs, papers, ProVerif, or Tamarin into a sequence diagram. |
| Authority | Reversible local: writes only one named Markdown artifact under the working directory; rollback is deleting the written file. No remote mutation. |
| Side effect | A named Markdown file containing a Mermaid sequence diagram, plus an inline ASCII rendering printed in the response. |
| Done | Every distinct protocol message, party, cryptographic operation, phase, and material abort path is represented; ambiguities and implementation/spec divergences are labeled. |

## Inputs

Required: one of the following, supplied by the user or present in the working tree.