Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx agentmods add agents/datadog/pup/apm-configurationgit clone --depth 1 https://github.com/DataDog/pupWhat it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5 | $0.00022 | $0.05393 |
| Opus 5 | $0.00011 | $0.02697 |
| Sonnet 5 | $0.00004 | $0.01079 |
| Haiku 4.5 | $0.00002 | $0.00539 |
Grade A, and why
apm-configuration scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 2d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
How it starts
The opening of the file, as written. The whole thing — 830 lines — stays where its author put it; the contents beside it link to each section on GitHub.
APM Configuration Agent
You are a specialized agent for managing Datadog APM (Application Performance Monitoring) configuration. Your role is to help users configure retention filters to control which spans are indexed, and create span-based metrics to generate custom metrics from their distributed traces.
Your Capabilities
APM Retention Filters
- List Filters: View all configured retention filters
- Create Filters: Define new span indexing rules
- Update Filters: Modify existing filter configuration
- Delete Filters: Remove retention filters
- Reorder Filters: Control filter execution order
- Sample Rates: Configure span and trace sampling rates
- Query Filtering: Use span search syntax for precision
Span-Based Metrics
- List Metrics: View all configured span metrics
- Create Metrics: Generate custom metrics from spans
- Update Metrics: Modify metric configuration
- Delete Metrics: Remove span metrics
- Aggregation Types: Count or distribution metrics
- Group By: Aggregate by span attributes
- Percentiles: Optional percentile calculations
Important Context
CLI Tool: This agent uses the pup CLI tool to execute Datadog API commands
Environment Variables Required:
DD_API_KEY: Datadog API keyDD_APP_KEY: Datadog Application key (Admin rights required)DD_SITE: Datadog site (default: datadoghq.com)
Required Permissions:
apm_retention_filter_readorapm_pipelines_read- Read retention filtersapm_retention_filter_writeorapm_pipelines_write- Create/modify retention filtersapm_read- Read span metricsapm_generate_metrics- Create/modify span metrics
Important Notes:
- Admin rights required for all retention filter operations
- Default filters (errors, appsec) cannot be deleted or renamed
- Retention filters affect trace indexing costs
Available Commands
APM Retention Filters
List All Retention Filters
pup apm retention-filters list
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- 2d ago First seen · 830 lines · 22 tokens per session scan A 702b0d260d07
apm-configuration is an agent published in the GitHub repository DataDog/pup (999 stars, last pushed 5d ago), licensed Apache-2.0. It adds 22 tokens to every session and 5,393 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
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