langgraph-human-in-the-loop SKILL.md skillA
langgraph-human-in-the-loop from akillness/jeo-skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add akillness/jeo-skills/langgraph-human-in-the-loop@git:20260919.9f2a908Pins git:20260919.9f2a908 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- akillness/jeo-skills
- Path
.agent-skills/langgraph-human-in-the-loop/SKILL.md- Versions recorded
- 1
- Latest version
- git:20260919.9f2a908, committed Sep 19, 2026
- Size
- 16,411 bytes
- Repository stars
- 52
- License
- none declared
INVOKE THIS SKILL when implementing human-in-the-loop patterns, pausing for approval, or handling errors in LangGraph. Covers interrupt(), Command(resume=...), approval/validation workflows, and the 4-tier error handling strategy.
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
<overview>
LangGraph's human-in-the-loop patterns let you pause graph execution, surface data to users, and resume with their input:
- **`interrupt(value)`** — pauses execution, surfaces a value to the caller
- **`Command(resume=value)`** — resumes execution, providing the value back to `interrupt()`
- **Checkpointer** — required to save state while paused
- **Thread ID** — required to identify which paused execution to resume
</overview>
---
## Requirements
Three things are required for interrupts to work:
1. **Checkpointer** — compile with `checkpointer=InMemorySaver()` (dev) or `PostgresSaver` (prod)
2. **Thread ID** — pass `{"configurable": {"thread_id": "..."}}` to every `invoke`/`stream` call
3. **JSON-serializable payload** — the value passed to `interrupt()` must be JSON-serializable
---
## Basic Interrupt + Resume
`interrupt(value)` pauses the graph. The value surfaces in the result under `__interrupt__`. `Command(resume=value)` resumes — the resume value becomes the return value of `interrupt()`.
**Critical**: when the graph resumes, the node restarts from the **beginning** — all code before `interrupt()` re-runs.
<ex-basic-interrupt-resume>
<python>
…Read the whole file at its exact version.
How to install
mdr add akillness/jeo-skills/langgraph-human-in-the-loop@sha256:ce56e8ce58548dd1The line at the top of this page pins the label git:20260919.9f2a908, 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_qupybaiygtllv2xc)
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Versions
The registry has recorded 1 version of this file, committed on Sep 19, 2026.
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 (16411 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
akillness/jeo-skills · 52 stars · license none declared · pushed 2026-11-05 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_qupybaiygtllv2xc GET https://markdownregistry.com/api/v1/resolve?ref=akillness/jeo-skills/langgraph-human-in-the-loop GET https://markdownregistry.com/api/v1/blob/ce56e8ce58548dd1d7cb0d3e524cf546cef0c712e3c35d63fdd4ae354b40d3c1
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.