docs: dispatch-symmetry anti-pattern (architecture, cross-town contribution from midgard)#451
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Codifies the architectural smell that produced 7 cross-town incidents between v1.0.4 → v1.0.6: a feature added at one dispatch entrypoint that doesn't cascade to all paths that should expose the same behavior. Manifests as silent degradation rather than loud error — caller sees a successful-looking run that has executed less than expected. Instances cataloged: boardroom Worker route asymmetry (bo-sq2), cross-product cache audit (dvi-25f), hq-m333 (OR→Anthropic image drop), hq-aaca (html attachment two-text-block shape), hq-ilke (v1 single-round bank-ref bypass), hq-fjdx (MCP v3 multi-round termination), hq-gjh7 (screenshot/playwright soft-dep silent degradation). Cross-town contribution from midgard mayor; PR opened from jotunheim per the standing cross-town coord protocol. Third such PR this cycle (after openrouter-byok-visual-review.md and release-dogfood-protocol.md). Co-Authored-By: midgard mayor <openclaw@dataviking.tech> Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
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Summary
Codifies the architectural smell that produced 7 cross-town incidents between v1.0.4 → v1.0.6: a feature added at one dispatch entrypoint that doesn't cascade to all paths that should expose the same behavior. Manifests as silent degradation rather than loud error.
Instances cataloged
htmlattachments inconsistent through two-text-block shape (hq-aaca)fetch_mode: screenshotsilent degradation when playwright not present (hq-gjh7)Common shape
Feature added at one entrypoint → doesn't cascade to all dispatch paths that should expose the same behavior → manifests as silent degradation (attachments dropped, rounds skipped, headers missing) rather than loud error → catch is manual probing → fix is "wire it everywhere + add a CI test that audits dispatch-path symmetry."
Doc structure
Authorship
Pattern + draft contributed by midgard mayor (`openclaw@dataviking.tech`). PR opened from jotunheim per standing cross-town coord protocol. Third cross-town docs PR this cycle (after PR #447 openrouter-byok-visual-review and PR #449 release-dogfood-protocol).
Test plan
🤖 Generated with Claude Code