feat: add slack-webhooks skill#51
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Adds a provider skill for receiving Slack Events API webhooks with manual
HMAC-SHA256 signature verification over the v0:{timestamp}:{body} basestring,
url_verification challenge handling, and event handlers for app_mention,
message, reaction_added, team_join, member_joined_channel, and app_home_opened.
Includes Express, Next.js, and FastAPI examples with 42 passing tests.
Adds the Slack row to the Provider Skills table in README.md and a providers.yaml entry (docs URLs, notes, testScenario) so the "Validate New Provider" CI workflow finds the integration files. The integrations were previously only on the prep branch (PR #40); moving them onto each feat PR makes the 12 generated PRs independently mergeable in any order. https://claude.ai/code/session_01NNTgQRJss1V7gyzzJ9rjnB
…e arg Applies the new project convention from PR #40: use `npx hookdeck-cli listen <port> <source> --path /webhooks/<source>` everywhere instead of `hookdeck listen <port> --path /webhooks/<source>`. Skips the global-install prereq (webhook-skills is provider-neutral) and passes the required `[source]` positional so the command is copy-paste- runnable without falling into an interactive prompt. https://claude.ai/code/session_01NNTgQRJss1V7gyzzJ9rjnB
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Summary
Adds a complete
slack-webhooksprovider skill for the Slack Events API — manual HMAC-SHA256 verification over thev0:{timestamp}:{body}basestring withurl_verificationchallenge handling.What's included
skills/slack-webhooks/SKILL.md— entry pointskills/slack-webhooks/references/— overview, setup, verificationskills/slack-webhooks/examples/— Express, Next.js App Router, FastAPI handlers (42 passing tests)app_mention,message,reaction_added,team_join,member_joined_channel,app_home_openedNotes
X-Slack-Signatureformatted asv0=<hex_sha256>X-Slack-Request-Timestampv0:{timestamp}:{raw_body}(version + timestamp + body joined by colons)url_verificationchallenge event must be echoed back during initial endpoint setupTest plan
cd skills/slack-webhooks/examples/express && npm testcd skills/slack-webhooks/examples/nextjs && npm testcd skills/slack-webhooks/examples/fastapi && pytest test_webhook.py -vurl_verificationchallenge with a fresh endpointGeneration details
./scripts/generate-skills.sh generatewith--config providers.yaml(entry added in PR docs: IS_SANDBOX=1 generator note + normative Hookdeck CLI invocation #40)claude-opus-4-7https://claude.ai/code/session_01NNTgQRJss1V7gyzzJ9rjnB
Generated by Claude Code