create-agent-catalog-source

name	create-agent-catalog-source
description	Use this skill when the user asks to "create an agent catalog", "generate agent catalog source", "build agent catalog from repo", "catalog my agents", or wants to scan a repository containing agent templates and/or agent metadata to produce a custom agent catalog source YAML for the agents catalog. Trigger phrases include: "create agent catalog source", "generate agent catalog", "catalog agents from repo", "agent catalog from repository", "custom agent catalog".
allowed-tools	Bash Read Grep Glob Write AskUserQuestion WebFetch

Create Agent Catalog Source

Scan a repository for agent templates and metadata, then generate a custom agent catalog source compatible with the agents catalog service.

Usage:

• /create-agent-catalog-source — scan the current working directory
• /create-agent-catalog-source /path/to/repo — scan a local repository
• /create-agent-catalog-source https://github.com/org/repo — clone and scan a remote repository

---

Step 1: Resolve Input

Parse the argument passed by the user to determine the target repository path.

If the argument looks like a GitHub URL (starts with https://github.com/ or [e-mail]:):

1. Generate a temporary directory path:

   TMPDIR=$(mktemp -d /tmp/agent-catalog-XXXXXX)
   

2. Clone the repository (shallow):

   git clone --depth 1 <url> "$TMPDIR"
   

3. If the clone fails, report the error and suggest the user clone manually and pass the local path instead. Stop.
4. Use $TMPDIR as the scan target. Remember to clean up at the end.

If the argument is a local path:

1. Verify the path exists:

   test -d <path>
   

2. If it does not exist, report the error and stop.
3. Use the provided path as the scan target.

If no argument is provided:

1. Use the current working directory as the scan target.

After resolving the target path, detect git metadata for repositoryUrl generation:

cd <target-path>
git remote get-url origin 2>/dev/null
git branch --show-current 2>/dev/null

If the directory is not a git repo, warn the user that repositoryUrl fields will be empty but continue.

Convert the git remote URL to an HTTPS base URL:

• [e-mail]:org/repo.git → https://github.com/org/repo
• https://github.com/org/repo.git → https://github.com/org/repo
• Store the remote URL and branch name for later use when building repositoryUrl per agent.

Check the output directory:

test -d <original-cwd>/.agent-catalog

If .agent-catalog/ already exists, ask the user whether to overwrite or choose a different output path using AskUserQuestion. Store the chosen path as <output-dir> (default: <original-cwd>/.agent-catalog). All subsequent steps use <output-dir> when writing output files.

---

Step 2: Discover Agents — Convention Scan

Search the target repository for directories containing an agent.yaml file. This is the preferred agent metadata format. Inform the user:

"Scanning for agent.yaml files (preferred convention)..."

Find all agent.yaml files:

find <target-path> -name "agent.yaml" \
  -not -path "*/.git/*" \
  -not -path "*/.github/*" \
  -not -path "*/node_modules/*" \
  -not -path "*/vendor/*" \
  -not -path "*/build/*" \
  -not -path "*/dist/*" \
  -not -path "*/__pycache__/*"

For each agent.yaml found:

1. Read the file content.
2. Extract known fields:
   • name (string, required)
   • displayName (string, optional)
   • framework (string, required)
   • description (string, required)
   • labels (string array, optional, default [])
   • logo (string, optional, default "")
   • env (object with required and optional string arrays, optional)
3. Note any additional top-level fields — these will become customProperties.
4. Check for a companion README.md in the same directory:

   test -f <agent-dir>/README.md
   

5. If README.md exists, read its full content for the readme field.
6. Compute the agent's relative path from the repo root (for repositoryUrl).

Collect all discovered agents into a list. Track for each:

• Relative path within the repo
• Parsed agent.yaml fields
• Whether README.md was found
• Any extra fields for customProperties
• Discovery source: "convention"

Validation per agent:

• If name is missing, derive it from the directory name (kebab-case).
• If framework is missing, flag it as needing user input.
• If description is missing, try to extract the first paragraph from README.md if available.

Always proceed to Step 3 (Heuristic Scan) regardless of how many agents the convention scan found. The heuristic scan may discover additional agents in non-standard formats (e.g., YAML files not named agent.yaml, or agents documented only in Markdown).

---

Step 3: Discover Agents — Heuristic Scan

This step always runs after the convention scan to find additional agents that may use non-standard file names or only have Markdown documentation.

Inform the user:

"Scanning for additional agents via YAML heuristic and Markdown analysis..."

3a: YAML Heuristic Scan

Search for YAML files that look like they describe an agent:

find <target-path> -type f \( -name "*.yaml" -o -name "*.yml" \) \
  -not -path "*/.git/*" \
  -not -path "*/node_modules/*" \
  -not -path "*/vendor/*" \
  -not -name "docker-compose*" \
  -not -name "*lock*" \
  -not -name ".pre-commit*"

For each YAML file, read it and check if it is "agent-like":

• It must contain a name field (string)
• It must contain at least one of: framework, description, or env
• Exclude files that look like CI configs, Dockerfiles, Kubernetes manifests (check for apiVersion, kind, services, jobs, steps top-level keys — these are not agents)

For qualifying files:

• Extract the same known fields as the convention scan
• Set discovery source to "yaml-heuristic"
• Note the file path

3b: Markdown Scan

Search for Markdown files that describe agents:

find <target-path> -type f -name "*.md" \
  -not -path "*/.git/*" \
  -not -path "*/node_modules/*" \
  -not -name "CHANGELOG*" \
  -not -name "LICENSE*" \
  -not -name "CONTRIBUTING*"

For each Markdown file, scan for agent-relevant signals:

1. Framework mentions — search (case-insensitive) for: langgraph, crewai, autogen, llamaindex, llama-index, haystack, semantic-kernel, langflow, langchain, openai-agents, google-adk, a2a

2. Agent keywords — search for: agent, tool-calling, ReAct, chain-of-thought, orchestrator, agentic, function calling, tool use

3. Environment variable documentation — look for sections with headers like "Environment Variables", "Configuration", "Setup", ".env" that list variable names

4. Description extraction — extract the first paragraph after the top-level heading as a candidate description

A Markdown file is a candidate if it has at least one framework mention AND at least one agent keyword.

For qualifying Markdown files, extract as many of the 7 required catalog fields as possible:

• name — infer from the filename or first heading (kebab-cased)
• displayName — infer from the first heading (original casing)
• framework — from the framework mention found
• description — from the first paragraph after the top-level heading
• labels — default [] (user can add during confirmation)
• logo — default "" (user can provide during confirmation)
• env — extract from environment variable documentation: look for bullet lists or tables listing variable names. Parse required/optional indicators from the text (e.g., "required", "optional", "Yes", "No"). If a var is listed without an indicator, default to required: true
• Set readme to the full file content
• Set discovery source to "markdown-inference"
• Flag all fields as draft — the user must confirm/edit

Merge Results

Combine convention-scan, YAML-heuristic, and markdown-inference results into a single list:

1. Deduplicate: If a heuristic/markdown candidate is from the same directory as a convention-scan agent, skip the heuristic candidate (convention already captured it).
2. Merge within heuristic: If a YAML-heuristic candidate and a markdown-inference candidate are from the same directory, merge them — prefer YAML fields, supplement with Markdown-extracted description/readme.

Proceed to Step 3c (Generate agent.yaml) with the merged list.

If zero agents total after all scans, tell the user:

"No agents found in this repository. To use this skill, organize your agents with an agent.yaml file per agent directory. Here is the expected format:"

Then print an example agent.yaml:

name: my-agent
displayName: My Agent
framework: langgraph
description: A custom agent that does X
labels:
  - tool-calling
  - rag
env:
  required:
    - API_KEY
    - MODEL_ENDPOINT
  optional:
    - DEBUG

And stop.

3c: Generate agent.yaml for Heuristic-Discovered Agents

Every agent in the catalog must have an agent.yaml file. Convention-scanned agents already have one. For each agent discovered via yaml-heuristic or markdown-inference, generate an agent.yaml matching the format expected by the agents catalog.

Important: The generated agent.yaml is NOT written to the agent's source directory — it is assembled in memory and included only in the catalog output (as the templates entry in <output-dir>/catalog.yaml). The agent's source directory remains unchanged.

For each heuristic/markdown-discovered agent:

1. Assemble the agent.yaml content from the extracted metadata using this exact format:

   name: <kebab-case-name>
   displayName: "<Human Readable Display Name>"
   framework: <framework>
   description: "<description>"
   labels: [<labels-as-inline-array-or-empty>]
   logo: "<logo-string-or-empty>"
   env:
     required:
       - VAR_NAME_1
       - VAR_NAME_2
     optional:
       - VAR_NAME_3
   

   Field mapping:

   • name: from extracted metadata, kebab-cased
   • displayName: from extracted metadata, or title-cased from name if not available
   • framework: from extracted metadata
   • description: from extracted metadata
   • labels: from extracted metadata, default []
   • logo: from extracted metadata, default ""
   • env.required / env.optional: from extracted environment variable documentation. If no env vars were found, use required: [] and optional: []

2. Display the generated agent.yaml to the user:

   "Generated agent.yaml for agent <name> (discovered via <source>):"

   <full assembled content>
   

3. Use AskUserQuestion to ask the user to confirm:

Proceed to Step 4 with only the confirmed agents.

---

Step 4: User Confirmation

Present all discovered agents to the user in a summary table. Format:

Discovered N agents:

  #  Name                     Framework    Source           Path
  1. langgraph-react-agent    langgraph    convention       agents/react_agent/
  2. crewai-rag-agent         crewai       convention       agents/rag/
  3. my-custom-agent          autogen      yaml-heuristic   tools/agent.yaml
  4. search-bot               langgraph    markdown         bots/search/README.md

For markdown-inference sourced agents, also show the draft metadata:

  Agent #4 (search-bot) — inferred from Markdown, please review:
    name: search-bot
    framework: langgraph (inferred from README mention)
    description: "A search bot that uses LangGraph to orchestrate web search tools"
    [Edit any field? y/N]

Use AskUserQuestion to ask:

1. "Include all discovered agents, or select which to include?"

   • Options: "Include all (Recommended)", "Let me select", "Add agents manually"
   • If "Let me select": ask which numbers to include (comma-separated)
   • If "Add agents manually": ask for the path to an agent directory, read its files, and add it to the list. Repeat until the user is done.

2. Required fields check. Every agent in the catalog MUST have all 7 of these fields (even if some use default/empty values):

   • name (string, non-empty)
   • displayName (string, non-empty)
   • description (string, non-empty)
   • framework (string, non-empty)
   • labels (string array, may be [])
   • logo (string, may be "")
   • env (array of {name, required}, may be [])

   For any agent missing a non-empty required field (name, displayName, description, or framework), ask the user to provide the value. For labels, logo, and env, use defaults ([], "", []) if not available, but show the user what defaults were applied so they can override.

3. For markdown-inference agents, present each one's draft metadata for ALL 7 required fields and ask if the user wants to edit any. Let them type corrections inline.

4. "What should the catalog source be named?"

   • Default: the repository name (derived from git remote or directory name)
   • The user can accept or type a custom name

5. "Would you like to add labels to this catalog source? (e.g., 'Custom', 'Internal')"

   • Default: no labels (empty array)
   • If yes, ask for comma-separated label strings

Store the confirmed agents list, source name, and source labels for output generation.

---

Step 5: Generate Catalog YAML

Create the output directory:

mkdir -p <output-dir>

Build the catalog YAML content. The output must match this exact schema (compatible with the model-registry yamlAgentCatalog consumer):

source: <confirmed-source-name>
agents:
    - name: <kebab-case-name>
      displayName: <display-name>
      description: <description>
      readme: |
        <full README.md content, or empty string>
      repositoryUrl: <git-remote-https-url>/tree/<branch>/<agent-relative-path>
      framework: <framework>
      labels:
        - <label1>
        - <label2>
      logo: "<logo-string-or-empty>"
      env:
        - name: <var-name>
          required: true
        - name: <var-name>
          required: false
      templates:
        - name: agent.yaml
          content: '<full-agent-yaml-as-json-string>'
      customProperties:
        <extra-field-name>:
            metadataType: MetadataStringValue
            string_value: "<value>"

Field assembly per agent:

Field	How to build
name	From confirmed metadata. Must be kebab-case and unique within the catalog.
displayName	From confirmed metadata. If empty, title-case the name (replace hyphens with spaces, capitalize each word).
description	From confirmed metadata.
readme	Full content of the agent's README.md. Use YAML literal block scalar (`
repositoryUrl	<git-remote-url>/tree/<branch>/<agent-relative-path>. Empty string if no git remote was detected.
framework	From confirmed metadata.
labels	From agent.yaml labels field. Default []. Always include this field.
logo	From agent.yaml logo field. Default "". Always include this field.
env	Transform from {required: [...], optional: [...]} to flat list: each required var gets {name: X, required: true}, each optional var gets {name: X, required: false}. For markdown-inferred agents, use env vars extracted from the README. Default []. Always include this field.
templates	The templates content must always reflect the final confirmed metadata — including any edits the user made in Step 4. Convert the final metadata to a compact JSON string using ./bin/yq. The result becomes a single template entry: {name: "agent.yaml", content: "<json>"}. For all agents, assemble a YAML representation of the final confirmed fields, write it to a temporary file (TMPFILE=$(mktemp /tmp/agent-yaml-XXXXXX.yaml)), run ./bin/yq "$TMPFILE" -o json -I 0, capture stdout, then clean up (rm "$TMPFILE"). For convention-discovered agents where the user edited fields in Step 4: the on-disk agent.yaml is now out of sync — ask the user whether they want to update the original file in the source repository to match.

IMPORTANT: The 7 required fields (name, displayName, description, framework, labels, logo, env) must be present on EVERY agent entry in the catalog, regardless of discovery source. Use empty defaults ([], "") where no value was found.

Write the catalog file to <output-dir>/catalog.yaml.

Ensure the file ends with a newline character.

Validate: Read back the written file and confirm:

• It is valid YAML
• It has a source: key
• It has an agents: array with the expected number of entries
• Each agent has ALL 7 required fields present: name, displayName, description, framework, labels, logo, env

Report to the user:

"Catalog written to <output-dir>/catalog.yaml with N agents."

---

Step 6: Generate Deployment Artifacts

6a: Sources Config Snippet

Derive the source ID from the confirmed source name:

• Lowercase the name
• Replace spaces with underscores
• Remove any characters that are not alphanumeric or underscores

Write <output-dir>/sources-snippet.yaml with the following content:

- name: "<confirmed-source-name>"
  id: <derived-source-id>
  type: yaml
  enabled: true
  properties:
      yamlCatalogPath: /data/custom-agents/catalog.yaml
  labels:
    - <label1>

The yamlCatalogPath uses a placeholder — the user will update this to match the actual mount path in their deployment.

If the user chose no labels, use: labels: []

6b: Deploy Script

Write <output-dir>/deploy.sh with the following content:

#!/bin/bash
# Deploy custom agent catalog source to Kubernetes
# Generated by /create-agent-catalog-source
#
# Prerequisites:
#   - kubectl (or oc) CLI logged into the target cluster
#   - Appropriate permissions to create ConfigMaps in the target namespace
#
# Usage:
#   cd <project-root>
#   NAMESPACE=my-namespace <output-dir>/deploy.sh

set -euo pipefail

NAMESPACE="${NAMESPACE:-kubeflow}"
CONFIGMAP_NAME="<derived-source-id>-catalog"

echo "Creating ConfigMap '$CONFIGMAP_NAME' in namespace '$NAMESPACE'..."

kubectl create configmap "$CONFIGMAP_NAME" \
    --from-file=catalog.yaml=<output-dir>/catalog.yaml \
    -n "$NAMESPACE" --dry-run=client -o yaml | kubectl apply -f -

echo ""
echo "ConfigMap created successfully."
echo ""
echo "Next steps:"
echo "  1. Mount the ConfigMap into the model-registry catalog deployment."
echo "  2. Edit the existing catalog sources ConfigMap to add this agent source:"
echo "     kubectl edit configmap <sources-configmap-name> -n $NAMESPACE"
echo ""
echo "  Add the following under the 'agent_catalogs' section:"
echo ""
 <output-dir>/sources-snippet.yaml
 
 
 

Make the deploy script executable:

chmod +x <output-dir>/deploy.sh

Replace <derived-source-id> in the script with the actual derived source ID value before writing.

6c: Cleanup

If a temporary clone was created in Step 1:

rm -rf "$TMPDIR"

6d: Final Summary

Print to the user:

Agent catalog source generated successfully!

Output directory: <output-dir>/
  catalog.yaml          — Agent catalog data (N agents)
  sources-snippet.yaml  — Sources config snippet (paste into existing sources ConfigMap)
  deploy.sh             — Deployment script for Kubernetes

To deploy:
  1. Run: <output-dir>/deploy.sh
  2. Edit the existing sources ConfigMap to add the snippet from sources-snippet.yaml
  3. The catalog service will hot-reload automatically — no restart needed.

Source name: <confirmed-source-name>
Source ID:   <derived-source-id>

Note: Source IDs must be unique across all catalog types (models, MCP servers, agents)
in your model-registry deployment. If you have an existing source with ID
'<derived-source-id>', choose a different name.