managing-agent-webhooks SKILL.md skillA
managing-agent-webhooks from letta-ai/letta-code is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add letta-ai/letta-code/managing-agent-webhooks@git:20261027.58b67b6Pins git:20261027.58b67b6 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- letta-ai/letta-code
- Path
src/skills/builtin/managing-agent-webhooks/SKILL.md- Versions recorded
- 2
- Latest version
- git:20261027.58b67b6, committed Oct 27, 2026
- First version recorded
- Oct 12, 2026
- Size
- 15,337 bytes
- Repository stars
- 3,790
- License
- Apache-2.0
Creates, lists, tests, enables, disables, rotates, inspects, and deletes inbound webhooks for the current Letta Cloud agent. Use when a user asks to set up a webhook, send external events to an agent, test webhook delivery, inspect recent webhook requests, rotate a webhook URL, or remove a webhook.
Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
# Managing Agent Webhooks Use the helper script for deterministic, secret-safe webhook management. Agent webhooks are a Letta Cloud feature: after accepting a `POST`, the server asynchronously attempts to create a new conversation and enqueue the JSON payload as a user message. ## Safety - Manage the current agent only. `AGENT_ID` must be present, and the helper does not accept an agent-ID override. - Treat each webhook URL as a capability secret. Do not post it publicly. - Choose authentication deliberately. If the user did not specify public or Basic-auth access, ask before creating the webhook. - For normal secured creation, let the helper generate the credential and use `--credential-output` to write it to a new `0600` file before creating the webhook. The helper never prints the credential. Do not read or paste the file into the transcript. - Give the file to the user through a private file download. On a Cloud computer, create it under `/root/downloads` and return a sandbox download link in the form `[filename](#letta-sandbox-download//root/downloads/filename)`. Do not write credentials beneath an attacker-writable parent. Tell the user the …
Read the whole file at its exact version.
How to install
mdr add letta-ai/letta-code/managing-agent-webhooks@sha256:6ad71f1ad55de34dThe line at the top of this page pins the label git:20261027.58b67b6, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.
[](https://markdownregistry.com/a/art_rmnnk6dh36qdgux3)
4 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 2 versions of this file, between Oct 12, 2026 and Oct 27, 2026, about one every 14 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20261027.58b67b6 latest | 2026-10-27 | 58b67b6 | 15,337 B | A | view · diff |
| git:20261012.927e5e2 | 2026-10-12 | 927e5e2 | 14,540 B | A | view |
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (15337 bytes)
- pass: No zero-width or bidi control characters
- pass: No instruction hidden inside an HTML comment
- pass: No link to an exfiltration or paste host
- pass: No credential-shaped string
- pass: No instruction to send local credentials anywhere
- pass: No text hidden with inline styles
- pass: No prompt-injection phrasing
- pass: No curl or wget piped into a shell
- pass: No recursive delete of root, home or parent
- pass: No instruction to read or print local credentials
- pass: No base64 blob over 200 characters
- pass: No link to a raw IP address
- pass: No script tag
Source
letta-ai/letta-code · 3,790 stars · license Apache-2.0 · pushed 2026-11-06 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_rmnnk6dh36qdgux3 GET https://markdownregistry.com/api/v1/resolve?ref=letta-ai/letta-code/managing-agent-webhooks GET https://markdownregistry.com/api/v1/blob/6ad71f1ad55de34dea3cdbfa622317029a94a2528d047ee1824a25c78891c7c9
Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.
Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.