Onboarding Summary Skill for Claude

APM Onboarding Summary — Linux Host

Triggers

Invoke this skill when:

• All steps in verify-ssi have passed
• All checks in troubleshoot-ssi have been resolved
• The user asks "is everything working?", "show me the status", or "confirm APM is set up"

Do NOT invoke this skill if any verification or troubleshooting check is still failing — resolve those first.

Context to resolve before acting

| Variable | How to resolve |

|---|---|

| HOSTNAME | hostname -f on the target host |

| DD_HOSTNAME | Hostname as Datadog sees it — from sudo datadog-agent status |

| SERVICE_NAME | DD_SERVICE value from /proc/<PID>/environ or the systemd unit |

| ENV | DD_ENV value from /proc/<PID>/environ or the systemd unit |

| DD_SITE | grep "^site:" /etc/datadog-agent/datadog.yaml |

| SSH_KEY | Path to SSH private key |

| SSH_USER | SSH username |

| SSH_HOST | Hostname or IP of the target host |

Prerequisites

Claude runs

pup auth status --site <DD_SITE>

If valid token — proceed.

ERROR: Not authenticated:

Claude runs

pup auth login --site <DD_SITE>

> This opens a browser tab for OAuth. Complete the login there — Claude will continue once the command exits.

Collect live confirmation data

Run all of the following. Each populates a row in the final report.

Claude runs

# Agent version and status
sudo datadog-agent status 2>&1 | grep -E "Agent \(v|Status:|API Keys status"

# Inject library armed in ld.so.preload
ssh -o StrictHostKeyChecking=no -i <SSH_KEY> <SSH_USER>@<SSH_HOST> "cat /etc/ld.so.preload"

# Process confirmed injected — launcher + language library in /proc/<PID>/maps
ssh -o StrictHostKeyChecking=no -i <SSH_KEY> <SSH_USER>@<SSH_HOST> \
  "pgrep -a -f '<SERVICE_NAME>' | head -3"

Use the PID from above:

ssh -o StrictHostKeyChecking=no -i <SSH_KEY> <SSH_USER>@<SSH_HOST> \
  "sudo cat /proc/<PID>/maps | grep -E 'launcher|apm-library|datadog'"

# UST vars in process environment
ssh -o StrictHostKeyChecking=no -i <SSH_KEY> <SSH_USER>@<SSH_HOST> \
  "sudo cat /proc/<PID>/environ | tr '\0' '\n' | grep -E 'DD_SERVICE|DD_ENV|DD_VERSION'"

# Agent APM receiver — trace counts
ssh -o StrictHostKeyChecking=no -i <SSH_KEY> <SSH_USER>@<SSH_HOST> \
  "sudo datadog-agent status 2>&1 | grep -A 10 'Receiver (previous minute)'"

# Service visible and traced in APM backend
DD_SITE=<DD_SITE> pup apm services list --env <ENV> --from 1h

# Traces arriving in the last hour
DD_SITE=<DD_SITE> pup traces search --query "service:<SERVICE_NAME>" --from 1h --limit 5

Present the report

Fill in every value from live command output. Do not leave any placeholder unfilled. If a value cannot be confirmed, mark that row as failed and link to troubleshoot-ssi.

APM onboarding complete

| Check | Detail | Status |

|---|---|---|

| Datadog Agent | v<VERSION> running on <HOSTNAME>, API key valid | OK |

| SSI armed | /etc/ld.so.preload contains launcher path | OK |

| Process injected | launcher + language library in /proc/<PID>/maps for <SERVICE_NAME> | OK |

| Unified Service Tags | DD_SERVICE=<SERVICE_NAME> DD_ENV=<ENV> DD_VERSION=<VERSION> | OK |

| Agent receiving traces | <N> trace(s)/min in APM receiver | OK |

| APM service visible | <SERVICE_NAME> in env <ENV> | OK |

| Traces arriving | <N> trace(s) found in the last hour | OK |

Your service in Datadog — click to open:

Construct each URL by substituting real values. Do not print placeholder URLs.

| View | URL |

|---|---|

| Service overview | https://app.<DD_SITE>/apm/services/<SERVICE_NAME>?env=<ENV> |

| Traces explorer | https://app.<DD_SITE>/apm/traces?query=service:<SERVICE_NAME>%20env:<ENV> |

| Service map | https://app.<DD_SITE>/apm/map?env=<ENV>&service=<SERVICE_NAME> |

| Infrastructure host | https://app.<DD_SITE>/infrastructure?q=host:<HOSTNAME> |

| Agent fleet | https://app.<DD_SITE>/fleet-automation |

Security constraints

• Never write a raw API key into any file or chat message