Give a successful viz reply a link that renders the diagram - #24
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Slack shows raw Mermaid as text. The reply now ends with a mermaid.live link carrying the whole diagram zlib-compressed in the URL fragment, which a browser never sends to any server — the site's JavaScript renders it locally, so following the link ships the diagram to no one. Only a `viz` that did its job gets the line; failures and every other command are unchanged. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
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/grapharc vizreplies now end with a render this diagram link. The whole Mermaid document is zlib-compressed into the mermaid.live URL fragment, which a browser never sends to any server — the site's JavaScript renders it locally, so following the link ships the diagram to no one. Only avizthat did its job (exit 0, non-empty stdout) gets the line; failures and every other command are byte-for-byte unchanged.Two new tests: the URL round-trips back to the exact Mermaid source, and neither a failed
viznor a non-vizcommand grows the link. Full slack-gateway suite (23) green,ruff check .clean.🤖 Generated with Claude Code