Summary

Adds compact Slack overflow menus for native slash argument selection when choice counts are mid-sized.

• render overflow menus for command arg choices in the compact range
• keep existing behavior for small (button) and large (static_select) menus
• preserve existing action routing by reusing encoded command arg values
• add tests for overflow rendering and overflow selection dispatch

Scope

• src/slack/monitor/slash.ts
• src/slack/monitor/slash.test.ts

Validation

• pnpm test src/slack/monitor/slash.test.ts
• pnpm check

Dependency

Depends on:

• Slack: improve Block Kit interaction handling (foundation) #18180 Slack: improve Block Kit interaction handling (foundation)
• feat(slack): capture Block Kit view_closed lifecycle events #18234 feat(slack): capture Block Kit view_closed lifecycle events
• feat(slack): use static_select for large slash arg menus #18242 feat(slack): use static_select for large slash arg menus
• feat(slack): route modal interactions with private metadata #18252 feat(slack): route modal interactions with private metadata
• feat(slack): support Block Kit blocks in sendMessage #18257 feat(slack): support Block Kit blocks in sendMessage
• feat(slack): support Block Kit blocks in editMessage #18262 feat(slack): support Block Kit blocks in editMessage
• feat(slack): support blocks in plugin send action #18268 feat(slack): support blocks in plugin send action
• feat(slack): support blocks in plugin edit action #18278 feat(slack): support blocks in plugin edit action
• feat(slack): centralize Block Kit input validation #18284 feat(slack): centralize Block Kit input validation
• fix(slack): add blocks+media send guardrails #18290 fix(slack): add blocks+media send guardrails
• test(slack): cover sendMessage Block Kit paths #18372 test(slack): cover sendMessage Block Kit paths
• refactor(slack): centralize modal private_metadata utilities #18409 refactor(slack): centralize modal private_metadata utilities
• Slack: expand interaction payload normalization coverage #18413 Slack: expand interaction payload normalization coverage
• Slack: validate runtime blocks in send and edit paths #18416 Slack: validate runtime blocks in send and edit paths
• Slack: dedupe normalized interaction selections #18423 Slack: dedupe normalized interaction selections
• Slack: enrich block action context payloads #18431 Slack: enrich block action context payloads

If reviewing before dependencies merge, review tip commit: 05e4b9ed7.

Greptile Summary

Fixes this binding for the viewClosed method on the Slack Bolt app instance. The previous code destructured viewClosed into a standalone variable before calling it, which would lose the method's this context if the implementation references this internally (standard for Bolt listener registration methods). The new code stores the cast app reference as appWithViewClosed and calls appWithViewClosed.viewClosed(...), preserving the correct receiver.

• Refactored viewClosed extraction from inline destructuring to a named variable (appWithViewClosed) with method-call syntax
• No behavioral changes to handler logic, event payloads, or session routing

Confidence Score: 5/5

• This PR is safe to merge — it is a minimal, correct fix that preserves method binding without altering any handler logic.
• The change is a single, well-scoped refactor (8 insertions, 10 deletions) in one file that fixes a potential this binding issue when calling the viewClosed method. No handler logic, event payloads, or routing behavior is modified. The existing test suite covers viewClosed registration and invocation. The fix follows standard JavaScript patterns for preserving method context.
• No files require special attention

_{Last reviewed commit: 8ca13de}