Registry indexed
Verify Single Step Instrumentation (SSI) is working end-to-end on Kubernetes — SSI automatically instruments applications for APM without code changes. Only use after enable-ssi has run.
Verify Single Step Instrumentation (SSI) is working end-to-end on Kubernetes — SSI automatically instruments applications for APM without code changes. Only use after enable-ssi has run.
Source documentation, not instructions for this website. Review permissions before running any commands.
Before doing anything else: Fully resolve all variables in
## Context to resolve before acting. Do not begin Step 1 until every variable has a concrete value.
Invoke this skill when the user expresses intent to:
Do NOT invoke this skill if:
agent-install firstagent-install is completepup --version
If not found:
brew tap datadog-labs/pack
brew install pup
Check auth:
pup auth status --site <DD_SITE>
If not authenticated:
pup auth login --site <DD_SITE>
This opens a browser tab for OAuth. Complete the login there — Claude will continue once the command exits.
If valid token — proceed.
ERROR: No browser available: export DD_APP_KEY=<your-app-key>
| Variable | How to resolve |
|---|---|
DD_HOSTNAME | Hostname as Datadog sees it — from sudo datadog-agent status output |
SERVICE_NAME | Expected service name in APM — ask the user |
ENV | Environment tag — ask the user |
DD_SITE | grep "^site:" /etc/datadog-agent/datadog.yaml via SSH, or ask the user |
SSH_KEY | Path to SSH private key |
SSH_USER | SSH username |
SSH_HOST | Hostname or IP of the target host |
Use /proc/<pid>/maps — this is the authoritative check. It shows the actual shared libraries loaded into the running process, which is the only way to confirm the launcher and tracer .so files were actually loaded.
ssh -o StrictHostKeyChecking=no -i <SSH_KEY> <SSH_USER>@<SSH_HOST> \
"pgrep -a -f '<SERVICE_NAME>' | head -5"
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'"
If the output includes both the launcher (e.g. launcher.preload.so) and a language library (e.g. apm-library-python) — injection succeeded for this process.
ERROR: Launcher present but no language library — launcher ran but couldn't inject. Check for injection errors:
pup apm troubleshooting list --hostname <DD_HOSTNAME> --timeframe 1h
ERROR: Neither present — process was not injected. Check /etc/ld.so.preload:
ssh -o StrictHostKeyChecking=no -i <SSH_KEY> <SSH_USER>@<SSH_HOST> "cat /etc/ld.so.preload"
If empty — install did not set up the launcher. Re-run the install script with DD_APM_INSTRUMENTATION_ENABLED=host. If non-empty but the process still isn't injected — the process was started before the launcher was installed. Restart the service and recheck.
ssh -o StrictHostKeyChecking=no -i <SSH_KEY> <SSH_USER>@<SSH_HOST> \
"sudo datadog-agent status 2>&1 | grep -A 15 'APM Agent'"
Healthy output shows:
feature_auto_instrumentation_enabled: trueReceiver (previous minute) with > 0 tracesERROR: feature_auto_instrumentation_enabled: false — SSI not active on the agent. Check apm_config in /etc/datadog-agent/datadog.yaml.
ERROR: Receiver (previous minute): 0 — agent running but no traces yet. Generate traffic first (see Step 3), then recheck.
DD_SITE=<DD_SITE> pup apm services list --env <ENV> --from 1h
If <SERVICE_NAME> appears with isTraced: true — traces are reaching the Datadog backend.
Flask / ddtrace v3 naming note: With ddtrace >=3.x, Flask spans are emitted as
service:flaskrather thanservice:<DD_SERVICE>. TheDD_SERVICEvalue appears asbase_serviceon the spans. If you setDD_SERVICE=my-app, search forservice:flaskin the APM UI — the service list will showflask, notmy-app. Check thebase_servicetag to confirm it matches yourDD_SERVICE.
ERROR: Service missing — generate traffic to trigger trace creation:
ssh -o StrictHostKeyChecking=no -i <SSH_KEY> <SSH_USER>@<SSH_HOST> \
"sudo ss -tlnp 2>/dev/null | grep <PID> || sudo netstat -tlnp 2>/dev/null | grep <PID>"
Use the port from above:
ssh -o StrictHostKeyChecking=no -i <SSH_KEY> <SSH_USER>@<SSH_HOST> \
"for i in \$(seq 1 10); do curl -s -o /dev/null http://localhost:<PORT>/; done"
Wait 30 seconds, then retry:
DD_SITE=<DD_SITE> pup apm services list --env <ENV> --from 10m
DD_SITE=<DD_SITE> pup traces search --query "service:<SERVICE_NAME>" --from 10m --limit 5
ERROR: Still missing — check for injection errors and go to troubleshoot-ssi:
pup apm troubleshooting list --hostname <DD_HOSTNAME> --timeframe 1h
Exit when ALL of the following are true:
/proc/<PID>/maps> 0 traces/minpup apm services listIf any check fails, go to troubleshoot-ssi.
When all steps pass, automatically proceed to onboarding-summary now — do not ask the user for permission.
name: verify-ssi description: Verify Single Step Instrumentation (SSI) is working end-to-end on Linux hosts — SSI automatically instruments applications for APM without code changes. Only use after enable-ssi has run. metadata: version: "1.0.0" author: datadog-labs repository: https://github.com/datadog-labs/agent-skills tags: datadog,apm,linux,ssi,verification,instrumentation,ld-preload alwaysApply: "false"
--- name: verify-ssi description: Verify Single Step Instrumentation (SSI) is working end-to-end on Linux hosts — SSI automatically instruments applications for APM without code changes. Only use after enable-ssi has run. metadata: version: "1.0.0" author: datadog-labs repository: https://github.com/datadog-labs/agent-skills tags: datadog,apm,linux,ssi,verification,instrumentation,ld-preload alwaysApply: "false" --- # Verify APM SSI on Linux > **Before doing anything else:** Fully resolve all variables in `## Context to resolve before acting`. Do not begin Step 1 until every variable has a concrete value. ## Triggers Invoke this skill when the user expresses intent to: - Confirm SSI is working after installing the Datadog Agent on Linux - Check whether a Linux process is being instrumented - Verify the tracer is running and reporting telemetry Do NOT invoke this skill if: - SSI has not been enabled yet — run `agent-install` first - Services have not been restarted since the agent was installed — restart them first, then verify --- ## Prerequisites - [ ] `agent-install` is complete - [ ] Application services have been restarted since the agent was installed ### pup-cli: check, install, and authenticate ### Claude runs ```bash pup --version ``` If not found: ### Claude runs ```bash brew tap datadog-labs/pack brew install pup ``` Check auth: ```bash pup auth status --site <DD_SITE> ``` If not authenticated: ### Claude runs ```bash pup auth login --site <DD_SITE> ``` > This opens a browser tab for OAuth. Complete the login there — Claude will continue once the command exits. If valid token — proceed. ERROR: No browser available: `export DD_APP_KEY=<your-app-key>` --- ## Context to resolve before acting | Variable | How to resolve | |---|---| | `DD_HOSTNAME` | Hostname as Datadog sees it — from `sudo datadog-agent status` output | | `SERVICE_NAME` | Expected service name in APM — ask the user | | `ENV` | Environment tag — ask the user | | `DD_SITE` | `grep "^site:" /etc/datadog-agent/datadog.yaml` via SSH, or ask the user | | `SSH_KEY` | Path to SSH private key | | `SSH_USER` | SSH username | | `SSH_HOST` | Hostname or IP of the target host | --- ## Step 1: Confirm the Process is Injected Use `/proc/<pid>/maps` — this is the authoritative check. It shows the actual shared libraries loaded into the running process, which is the only way to confirm the launcher and tracer `.so` files were actually loaded. ### Claude runs ```bash ssh -o StrictHostKeyChecking=no -i <SSH_KEY> <SSH_USER>@<SSH_HOST> \ "pgrep -a -f '<SERVICE_NAME>' | head -5" ``` Use the PID from above: ```bash ssh -o StrictHostKeyChecking=no -i <SSH_KEY> <SSH_USER>@<SSH_HOST> \ "sudo cat /proc/<PID>/maps | grep -E 'launcher|apm-library|datadog'" ``` If the output includes both the launcher (e.g. `launcher.preload.so`) and a language library (e.g. `apm-library-python`) — injection succeeded for this process. ERROR: Launcher present but no language library — launcher ran but couldn't inject. Check for injection errors: ### Claude runs ```bash pup apm troubleshooting list --hostname <DD_HOSTNAME> --timeframe 1h ``` ERROR: Neither present — process was not injected. Check `/etc/ld.so.preload`: ```bash ssh -o StrictHostKeyChecking=no -i <SSH_KEY> <SSH_USER>@<SSH_HOST> "cat /etc/ld.so.preload" ``` If empty — install did not set up the launcher. Re-run the install script with `DD_APM_INSTRUMENTATION_ENABLED=host`. If non-empty but the process still isn't injected — the process was started before the launcher was installed. Restart the service and recheck. --- ## Step 2: Confirm the Agent is Receiving Traces ### Claude runs ```bash ssh -o StrictHostKeyChecking=no -i <SSH_KEY> <SSH_USER>@<SSH_HOST> \ "sudo datadog-agent status 2>&1 | grep -A 15 'APM Agent'" ``` Healthy output shows: - `feature_auto_instrumentation_enabled: true` - `Receiver (previous minute)` with `> 0` traces ERROR: `feature_auto_instrumentation_enabled: false` — SSI not active on the agent. Check `apm_config` in `/etc/datadog-agent/datadog.yaml`. ERROR: `Receiver (previous minute): 0` — agent running but no traces yet. Generate traffic first (see Step 3), then recheck. --- ## Step 3: Confirm the Service is Visible in Datadog ### Claude runs ```bash DD_SITE=<DD_SITE> pup apm services list --env <ENV> --from 1h ``` If `<SERVICE_NAME>` appears with `isTraced: true` — traces are reaching the Datadog backend. > **Flask / ddtrace v3 naming note:** With ddtrace >=3.x, Flask spans are emitted as `service:flask` rather than `service:<DD_SERVICE>`. The `DD_SERVICE` value appears as `base_service` on the spans. If you set `DD_SERVICE=my-app`, search for `service:flask` in the APM UI — the service list will show `flask`, not `my-app`. Check the `base_service` tag to confirm it matches your `DD_SERVICE`. ERROR: Service missing — generate traffic to trigger trace creation: ### Claude runs ```bash ssh -o StrictHostKeyChecking=no -i <SSH_KEY> <SSH_USER>@<SSH_HOST> \ "sudo ss -tlnp 2>/dev/null | grep <PID> || sudo netstat -tlnp 2>/dev/null | grep <PID>" ``` Use the port from above: ```bash ssh -o StrictHostKeyChecking=no -i <SSH_KEY> <SSH_USER>@<SSH_HOST> \ "for i in \$(seq 1 10); do curl -s -o /dev/null http://localhost:<PORT>/; done" ``` Wait 30 seconds, then retry: ```bash DD_SITE=<DD_SITE> pup apm services list --env <ENV> --from 10m DD_SITE=<DD_SITE> pup traces search --query "service:<SERVICE_NAME>" --from 10m --limit 5 ``` ERROR: Still missing — check for injection errors and go to `troubleshoot-ssi`: ```bash pup apm troubleshooting list --hostname <DD_HOSTNAME> --timeframe 1h ``` --- ## Done Exit when ALL of the following are true: - [ ] Step 1: launcher + language library both visible in `/proc/<PID>/maps` - [ ] Step 2: agent APM receiver shows `> 0` traces/min - [ ] Step 3: service appears in `pup apm services list` If any check fails, go to `troubleshoot-ssi`. When all steps pass, automatically proceed to `onboarding-summary` now — do not ask the user for permission. --- ## Security constraints - Never write a raw API key into any file or chat message - Always confirm before restarting production services
Source needs review
The tracked source changed or could not be synchronized. Review the current source before installing.
Review before install: Avoid automatic install
License: MIT
Listed tools are metadata hints, not tested compatibility. Agent prompts are suggested handoffs.
Repository metadata and review signals are advisory. Popularity, source discovery and successful execution are different facts.
Version reported in registry metadata; check source releases before relying on it.
Quality
69/100
Promising
Trust
65/100
This page exposes the same decision, trust, audit, use-case, and install signals through the Registry API, so agents can rank this skill without scraping the UI.
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}Listing source
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Audit
78/100
Risky
Copies are not installs. Installation counts require a reported successful installation; they are not a blanket quality guarantee.