Agentsop Observability Setup
agentsope/SkillAlchemy
Enhancement-overlay skill — the DECISION + WIRING layer for LM observability that the single-backend skills [[langsmith]], [[phoenix]], [[mlflow]] do NOT cover.
Debugs LangChain and LangGraph agents by pulling recent execution traces with the langsmith-fetch CLI and reporting errors, tool calls, timings and token use.
Install LangSmith Trace Debugging
$ npx skills add ComposioHQ/awesome-claude-skills --skill langsmith-fetch -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install ComposioHQ/awesome-claude-skills langsmith-fetch --agent claude-codeProject scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).
$ git clone --depth 1 https://github.com/ComposioHQ/awesome-claude-skills.git skills-src && mkdir -p .claude/skills && cp -r skills-src/langsmith-fetch .claude/skills/langsmith-fetch && rm -rf skills-srcUse ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.
Claude Code skills documentation · loads skills from .claude/skills/
Install the "langsmith-fetch" agent skill from https://github.com/ComposioHQ/awesome-claude-skills/tree/master/langsmith-fetch into .claude/skills/langsmith-fetch/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "langsmith-fetch", then confirm the skill loads.Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$skill-installer install https://github.com/ComposioHQ/awesome-claude-skills/tree/master/langsmith-fetchType this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.
$ npx skills add ComposioHQ/awesome-claude-skills --skill langsmith-fetch -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install ComposioHQ/awesome-claude-skills langsmith-fetch --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/ComposioHQ/awesome-claude-skills.git skills-src && mkdir -p .agents/skills && cp -r skills-src/langsmith-fetch .agents/skills/langsmith-fetch && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "langsmith-fetch" agent skill from https://github.com/ComposioHQ/awesome-claude-skills/tree/master/langsmith-fetch into .agents/skills/langsmith-fetch/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "langsmith-fetch", then confirm the skill loads.Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add ComposioHQ/awesome-claude-skills --skill langsmith-fetch -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install ComposioHQ/awesome-claude-skills langsmith-fetch --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/ComposioHQ/awesome-claude-skills.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/langsmith-fetch .cursor/skills/langsmith-fetch && rm -rf skills-srcUse ~/.cursor/skills/ instead of .cursor/skills for a personal install.
Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/
Install the "langsmith-fetch" agent skill from https://github.com/ComposioHQ/awesome-claude-skills/tree/master/langsmith-fetch into .cursor/skills/langsmith-fetch/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "langsmith-fetch", then confirm the skill loads.Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gemini skills install https://github.com/ComposioHQ/awesome-claude-skills.git --path langsmith-fetch--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.
$ npx skills add ComposioHQ/awesome-claude-skills --skill langsmith-fetch -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install ComposioHQ/awesome-claude-skills langsmith-fetch --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/ComposioHQ/awesome-claude-skills.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/langsmith-fetch .gemini/skills/langsmith-fetch && rm -rf skills-srcUse ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.
Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/
Install the "langsmith-fetch" agent skill from https://github.com/ComposioHQ/awesome-claude-skills/tree/master/langsmith-fetch into .gemini/skills/langsmith-fetch/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "langsmith-fetch", then confirm the skill loads.Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gh skill install ComposioHQ/awesome-claude-skills langsmith-fetchInstalls for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).
$ npx skills add ComposioHQ/awesome-claude-skills --skill langsmith-fetch -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/ComposioHQ/awesome-claude-skills.git skills-src && mkdir -p .github/skills && cp -r skills-src/langsmith-fetch .github/skills/langsmith-fetch && rm -rf skills-srcUse ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.
GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/
Install the "langsmith-fetch" agent skill from https://github.com/ComposioHQ/awesome-claude-skills/tree/master/langsmith-fetch into .github/skills/langsmith-fetch/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "langsmith-fetch", then confirm the skill loads.GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add ComposioHQ/awesome-claude-skills --skill langsmith-fetch -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install ComposioHQ/awesome-claude-skills langsmith-fetch --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/ComposioHQ/awesome-claude-skills.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/langsmith-fetch .opencode/skills/langsmith-fetch && rm -rf skills-srcUse ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.
OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/
Install the "langsmith-fetch" agent skill from https://github.com/ComposioHQ/awesome-claude-skills/tree/master/langsmith-fetch into .opencode/skills/langsmith-fetch/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "langsmith-fetch", then confirm the skill loads.OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
Facts
- Skill name
langsmith-fetch- GitHub stars
- 77k
- Used in
- 8 other repos
- Token cost
- ~2.7k tokens
- SKILL.md length
- 626 words
- Files
- 1
- Skills in repo
- 585
- Repo updated
- First seen
- Licence
- None found
At a glance
Debugs LangChain and LangGraph agents by pulling recent execution traces with the langsmith-fetch CLI and reporting errors, tool calls, timings and token use.
- Works in 6 steps: Install langsmith-fetch → Set Environment Variables → Regular Health Checks → …
- Finding out why a LangChain or LangGraph agent run failed
- SKILL.md covers When to Use This Skill, Prerequisites, Core Workflows and Common Use Cases, plus 4 more sections
- Calls pip; needs LANGSMITH_API_KEY and LANGCHAIN_API_KEY
What it does
Several workflows are built around the `langsmith-fetch` command. A quick pass fetches traces from the last few minutes and summarizes how many were found, which failed, which tools ran, how long they took and how many tokens they used. A deep dive takes one trace ID as JSON and reports the agent's goal, the ordered tool calls and their results, any errors, the root cause and a suggested fix.
It can also export a debug session into a timestamped folder and run a dedicated error-detection pass over recent traces. Setup is `pip install langsmith-fetch` plus the `LANGSMITH_API_KEY` and `LANGSMITH_PROJECT` environment variables. It applies when you ask what went wrong, which tools were called, how memory was used or how an agent performed.
When your agent uses it
- Finding out why a LangChain or LangGraph agent run failed
- Reviewing which tools an agent called and in what order
- Checking token usage and execution time of recent runs
- Saving a set of traces as a debug session
Example prompts
- “Show me the traces from the last five minutes and flag any errors.”
- “Investigate trace abc123 in depth and tell me the root cause.”
- “Export this debugging session so I can share the traces with my teammate.”
Requirements
- The `langsmith-fetch` CLI (`pip install langsmith-fetch`)
- `LANGSMITH_API_KEY` and `LANGSMITH_PROJECT` environment variables
Workflow steps
6 steps, taken from the step headings in SKILL.md.
- Install langsmith-fetch
- Set Environment Variables
- Regular Health Checks
- Organized Storage
- Document Findings
- Integration with Development
What it can do on your machine
Read from SKILL.md and the folder at commit be2a406. It shows what the files ask for, not the result of running them.
Tool permissions
Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.
From allowed-tools in the SKILL.md frontmatter.
Runs code
Shell commands in SKILL.md call:
pip
From the folder's file list and the shell code blocks in SKILL.md.
Network
Links to these hosts (documentation or services it may open):
github.comsmith.langchain.comdocs.langchain.com
From URLs in SKILL.md, links to its own repository left out.
Credentials
Names these keys or tokens, usually read from environment variables:
LANGSMITH_API_KEYLANGCHAIN_API_KEY
From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.
Context cost
LangSmith Trace Debugging loads about 2.7k tokens when it runs. Until then it costs about 88 tokens; SKILL.md has 626 words of instructions outside code blocks.
Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.
Safety
Auto-check passed
The automated check found no risky patterns in SKILL.md.
Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.
SKILL.md
Without a licence we can't republish the file, so here is its outline and opening line. It has 626 words (~2,703 tokens).
“Debug LangChain and LangGraph agents by fetching execution traces directly from LangSmith Studio in your terminal.”
- name
- langsmith-fetch
Files
Just SKILL.md in langsmith-fetch of ComposioHQ/awesome-claude-skills.
Open the folder on GitHubat commit be2a406
Used in 8 other repositories
We found 9 copies of this SKILL.md (exact, near-identical or edited) in other folders, from 8 other GitHub owners. This page covers the copy in ComposioHQ/awesome-claude-skills, which our catalogue first saw on October 7, 2026.
- aAAaqwq/AGI-Super-Teamskills/langsmith-fetch
- composio-community/awesome-codex-skillslangsmith-fetch
- Kilo-Org/kilo-marketplaceskills/langsmith-fetch
- NeverSight/learn-skills.devdata/skills-md/aaaaqwq/agi-super-skills/langsmith-fetchdata/skills-md/aaaaqwq/claude-code-skills/langsmith-fetch
- ECNU-ICALK/AutoSkillSkillBank/Common/AwesomeClaudeSkills/langsmith-fetch
- openteams-lab/openteamsassets/skills/langsmith-fetch
- lingxling/awesome-skills-cncomposiohq-awesome-claude-skills/langsmith-fetch
- w95/awesome-claude-corporate-skills08-it-engineering/langsmith-fetch
Compare with similar skills
LangSmith Trace Debugging next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.
| Skill | Stars | Used in | Tokens | Auto-check | Licence | Repo updated |
|---|---|---|---|---|---|---|
| LangSmith Trace Debugging this skillComposioHQ/awesome-claude-skills | 77k | 8 repos | ~2.7k | Automated safety check: Pass | None | |
| Agentsop Observability Setupagentsope/SkillAlchemy | 466 | — | ~4.4k | Automated safety check: Pass | MIT | |
| Langchain Dependencieslangchain-ai/langchain-skills | 1.3k | — | ~3.6k | Automated safety check: Pass | MIT | |
| Langgraph Testing Evaluationsoba-labs/langchain-agent-skills | 107 | — | ~2.3k | Automated safety check: Pass | MIT | |
| Langsmithlangchain-ai/docs | 426 | — | ~935 | Automated safety check: Pass | MIT | |
| Langsmith Deploymentsoba-labs/langchain-agent-skills | 107 | — | ~1.7k | Automated safety check: Pass | MIT |
Similar skills
- Official
Langchain Dependencies
langchain-ai/langchain-skills
INVOKE THIS SKILL when setting up a new project or when asked about package versions, installation, or dependency management for LangChain, LangGraph, LangSmith, or Deep Agents.
Langgraph Testing Evaluation
soba-labs/langchain-agent-skills
A skill your agent uses when you need to test or evaluate LangGraph/LangChain agents: writing unit or integration tests, generating test scaffolds, mocking LLM/tool behavior, running trajectory…
- Official
Langsmith
langchain-ai/docs
Trace, evaluate, and deploy AI agents and LLM applications with LangSmith.
Langsmith Deployment
soba-labs/langchain-agent-skills
Deploy and operate production agent servers with LangSmith Deployment.
- Official
Verify Against Source
langchain-ai/docs
Check that a code sample, API signature, default, or behavior claim in the docs is actually true, by running it or reading the product source.
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Categories
Questions about LangSmith Trace Debugging
What does LangSmith Trace Debugging do?
Debugs LangChain and LangGraph agents by pulling recent execution traces with the langsmith-fetch CLI and reporting errors, tool calls, timings and token use. Several workflows are built around the `langsmith-fetch` command. A quick pass fetches traces from the last few minutes and summarizes how many were found, which failed, which tools ran, how long they took and how many tokens they used.
When should I use LangSmith Trace Debugging?
LangSmith Trace Debugging fits situations like: finding out why a LangChain or LangGraph agent run failed; reviewing which tools an agent called and in what order; checking token usage and execution time of recent runs; saving a set of traces as a debug session.
How do I install LangSmith Trace Debugging in Claude Code?
Run `npx skills add ComposioHQ/awesome-claude-skills --skill langsmith-fetch -a claude-code`. Or copy the skill folder (langsmith-fetch in ComposioHQ/awesome-claude-skills) into .claude/skills/langsmith-fetch in your project. Claude Code loads it when a task matches its description.
How do I install LangSmith Trace Debugging in Codex?
Run `npx skills add ComposioHQ/awesome-claude-skills --skill langsmith-fetch -a codex`. Or copy the skill folder (langsmith-fetch in ComposioHQ/awesome-claude-skills) into .agents/skills/langsmith-fetch in your project. Codex loads it when a task matches its description.
Can I use LangSmith Trace Debugging in Cursor, Gemini CLI or GitHub Copilot?
Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add ComposioHQ/awesome-claude-skills --skill langsmith-fetch -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/langsmith-fetch, .gemini/skills/langsmith-fetch, .github/skills/langsmith-fetch and .opencode/skills/langsmith-fetch in your project.
What does LangSmith Trace Debugging need to run?
Going by SKILL.md and its folder, LangSmith Trace Debugging needs the command-line tools its instructions call (pip) and credentials named LANGSMITH_API_KEY and LANGCHAIN_API_KEY. Our summary lists: The `langsmith-fetch` CLI (`pip install langsmith-fetch`); `LANGSMITH_API_KEY` and `LANGSMITH_PROJECT` environment variables.
Does LangSmith Trace Debugging access the network?
SKILL.md names 3 domains. As links in the text: github.com, smith.langchain.com and docs.langchain.com. This is read from the text; nothing was executed.
Is LangSmith Trace Debugging safe to install?
Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.
What licence does LangSmith Trace Debugging use?
No licence was found for LangSmith Trace Debugging or its repository. Without one, default copyright applies: ask the author before reusing or redistributing it.
How many tokens does LangSmith Trace Debugging use?
About 2.7k tokens (SKILL.md is roughly 11k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.
What are the alternatives to LangSmith Trace Debugging?
Skills that share tags, products or a category with LangSmith Trace Debugging: Agentsop Observability Setup (agentsope/SkillAlchemy, 466 stars), Langchain Dependencies (langchain-ai/langchain-skills, 1.3k stars), Langgraph Testing Evaluation (soba-labs/langchain-agent-skills, 107 stars) and Langsmith (langchain-ai/docs, 426 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains LangSmith Trace Debugging?
ComposioHQ (a GitHub organization) maintains it in ComposioHQ/awesome-claude-skills, which has 76,721 GitHub stars. The repository holds 585 skills in this directory. The repository was last updated on September 18, 2026.
Source: ComposioHQ/awesome-claude-skills on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.