langchain-chains SKILL.md skillA
langchain-chains from a5c-ai/babysitter is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add a5c-ai/babysitter/langchain-chains@git:20260601.da7723aPins git:20260601.da7723a in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- a5c-ai/babysitter
- Path
library/specializations/ai-agents-conversational/skills/langchain-chains/SKILL.md- Versions recorded
- 5
- Latest version
- git:20260601.da7723a, committed Jun 1, 2026
- First version recorded
- Mar 25, 2026
- Size
- 1,640 bytes
- Repository stars
- 1,896
- License
- MIT
LangChain chain composition including SequentialChain, RouterChain, and LCEL patterns.
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
# LangChain Chains Skill ## Capabilities - Compose LangChain chains using LCEL (LangChain Expression Language) - Implement sequential chain patterns - Design router chains for conditional logic - Create parallel execution chains - Handle chain fallbacks and retries - Implement streaming chains ## Target Processes - dialogue-flow-design - chatbot-design-implementation ## Implementation Details ### Chain Patterns 1. **LCEL Pipelines**: Modern composition with | operator 2. **SequentialChain**: Linear chain execution (legacy) 3. **RouterChain**: Conditional routing based on input 4. **RunnableParallel**: Parallel execution branches 5. **RunnableBranch**: Conditional branching ### Configuration Options - Input/output key mapping - Error handling strategies - Retry configuration - Streaming settings - Batch processing options ### Best Practices - Use LCEL for new implementations - Implement proper input/output schemas - Add fallback chains for resilience - Use streaming for long operations ### Dependencies - langchain-core - langchain
Read the whole file at its exact version.
How to install
mdr add a5c-ai/babysitter/langchain-chains@sha256:e71cfe149f87a5a5The line at the top of this page pins the label git:20260601.da7723a, 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_lrypbf6krmkv3iie)
4 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 5 versions of this file, between Mar 25, 2026 and Jun 1, 2026, about one every 17 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20260601.da7723a latest | 2026-06-01 | da7723a | 1,640 B | A | view · diff |
| git:20260507.44b06c0 | 2026-05-07 | 44b06c0 | 1,705 B | A | view · diff |
| git:20260507.50823d8 | 2026-05-07 | 50823d8 | 1,648 B | A | view · diff |
| git:20260507.313363d | 2026-05-07 | 313363d | 1,369 B | A | view · diff |
| git:20260325.a6b3a88 | 2026-03-25 | a6b3a88 | 1,260 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 (1640 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
a5c-ai/babysitter · 1,896 stars · license MIT · pushed 2026-11-01 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_lrypbf6krmkv3iie GET https://markdownregistry.com/api/v1/resolve?ref=a5c-ai/babysitter/langchain-chains GET https://markdownregistry.com/api/v1/blob/e71cfe149f87a5a5bd13e1eacdee02d366b5cb7148611c82413b3709a601adf7
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.