# Messaging Adapter Parity

> This skill should be used when the user asks to change "Slack adapter", "Telegram adapter", "Discord adapter", "Webhook adapter", "status delivery", "message routing", or "delivery receipts". Enforces cross-adapter parity and explicit delivery semantics.

- Skill: `spacedriveapp/messaging-adapter-parity` (Agent Skill)
- Install (CLI): `npx skillmds@latest add spacedriveapp/messaging-adapter-parity`
- Raw SKILL.md: https://api.skillmd.com/api/skills/spacedriveapp/messaging-adapter-parity/raw
- Safety review: pending
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: Integrations & APIs
- Author: spacedriveapp (https://skillmd.com/u/spacedriveapp)
- Updated: 2026-09-17
- Page: https://skillmd.com/skills/spacedriveapp/messaging-adapter-parity

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# Messaging Adapter Parity

## Goal

Prevent adapter-specific regressions by validating behavior contracts across messaging backends.

## Contract Areas

- User-visible reply behavior
- Status update behavior (`surfaced` vs `not surfaced`)
- Delivery receipt ack/failure semantics
- Retry behavior and bounded backoff
- Error mapping and logging clarity

## Parity Checklist

- For every changed adapter path, compare expected behavior with at least one other adapter.
- If an adapter intentionally does not surface a status, ensure receipt handling still converges correctly.
- Ensure unsupported features degrade gracefully and predictably.
- Ensure worker terminal notices cannot loop indefinitely.

## Verification Checklist

- Run targeted tests for the touched adapter.
- Run targeted tests for receipt ack/failure paths.
- Run at least one parity comparison check across adapters.
- Run broad gate checks after targeted checks pass.

## Required Handoff

- Adapter paths changed
- Contract decisions made
- Receipt behavior outcomes
- Verification evidence
- Residual parity gaps