webhook-transforms
Generic framework for converting external events (SMS, meetings, social mentions) into brain-ingestible signals. Define a transform function, register a webhook URL, and incoming events get processed through the brain pipeline.
- Installs
- 231
- Last 24h
- +8
- Trending rank
- #9823
- Security
- Not audited
Install
Works with every agent the skills CLI supports.
npx skills add https://github.com/garrytan/gbrain --skill webhook-transforms- 01
Install
Run the command in your project. The CLI asks which agents to install for.
- 02
Describe the task
Ask your agent for something this skill covers. It loads webhook-transforms automatically when relevant.
- 03
Review the result
The agent follows the SKILL.md steps, scripts and references bundled with the skill.
SKILL.md
The instructions your agent reads when the skill is triggered.
Webhook Transforms
Contract
This skill guarantees:
- External events are transformed into brain pages with proper citations
- Raw payloads are preserved (dead-letter queue if transform fails)
- Entity extraction runs on every transformed event
- Input sanitization: no raw HTML/script passes to brain pages
- Error handling: transform failure logs raw payload, retries once
Phases
-
Define transform. Map event schema to brain page format:
- Input: raw webhook payload (JSON)
- Output: brain page content (markdown) + metadata (slug, type, citations)
- Must sanitize: strip HTML tags, escape script content
-
Register webhook URL. Provide the external service with the webhook endpoint.
-
On event received:
- Parse payload
- Run transform function
- Write brain page via
gbrain put - Extract entities, run enrichment
- Add timeline entries to mentioned entities
- Sync:
gbrain sync
-
Error handling:
- If transform throws: log raw payload to
_dead-letter/{timestamp}.md - Surface error type to agent
- Retry once
- Don't lose events
- If transform throws: log raw payload to
Example Transforms
SMS Received
Input: {from: "+1555...", body: "Meeting moved to 3pm", timestamp: "..."}
Output: Timeline entry on sender's brain page + task update if action item detected
Meeting Completed
Input: {title: "Weekly sync", attendees: [...], transcript: "...", summary: "..."}
Output: Delegate to meeting-ingestion skill
Social Mention
Input: {platform: "twitter", author: "@handle", text: "...", url: "..."}
Output: Brain page in media/ + entity extraction + backlinks
Output Format
Event transformed and written to brain. Report: "Webhook: {event_type} from {source} → {brain_page_path}"
When it fails
Follow the agent operator protocol for any gbrain error code, exit code, [AGENT] block or notice block. Specific to this skill:
- A transformed write returns
write_pending(exit 10): the event is accepted; record the request id and poll it, never replay the event under a new id. source_binding_required/insufficient_scope: the webhook's token cannot write that source; tell the user which grant the brain host's operator must add.- A malformed payload: reject it with the parse error and log it; do not write a partial page.
Anti-Patterns
- Passing raw HTML/script to brain pages (XSS risk)
- Silently dropping events when transform fails (use dead-letter queue)
- Processing webhooks without entity extraction
- Not sanitizing external input before brain writes
FAQ
What does the webhook-transforms skill do?
Generic framework for converting external events (SMS, meetings, social mentions) into brain-ingestible signals. Define a transform function, register a webhook URL, and incoming events get processed through the brain pipeline.
How do I install webhook-transforms?
Run npx skills add https://github.com/garrytan/gbrain --skill webhook-transforms in your project. The skills CLI detects the agents you use and copies the skill into the right folder. For Claude Code you can also place the skill folder at ~/.claude/skills/webhook-transforms/ (personal) or .claude/skills/webhook-transforms/ (project).
Which AI agents can use webhook-transforms?
Any agent that supports the open Agent Skills format (a folder with a SKILL.md file), including Claude Code, Codex, Cursor, GitHub Copilot, Gemini CLI, Windsurf, Cline, OpenCode and more.
Is webhook-transforms safe to install?
No partner security audit is available yet. Skills can run commands and scripts, so read the SKILL.md and any bundled files before installing.
Who maintains webhook-transforms?
It is published by garrytan in garrytan/gbrain. It has 231 recorded installs.
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