vigil-recon

vigil-recon is a skill for Claude Code from tonone-ai/tonone. It costs 41 tokens per session (1,118 once invoked), scanned A, original, MIT.

A read-only inventory of a project's monitoring setup, including metrics, logs, traces, deployment systems, and the services being monitored. It highlights areas where the system has little or no visibility.

In plain words
What is it for?
Use it to map existing observability tools and identify monitoring gaps across services and deployments.
Why use it?
It shows what the team can currently observe and where failures could go unnoticed.

Skill for Claude Code

Written for Claude Code: allowed-tools in frontmatter. Also seen: names the AskUserQuestion tool; mentions Claude Code.

Part of the engineering-team plugin — 80 skills shipped together

Good fit Use it to map existing observability tools and identify monitoring gaps across services and deployments.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/tonone-ai/tonone/vigil-recon
Install

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.

Any agent
npx skills add tonone-ai/tonone --skill vigil-recon
Clone the repo
git clone --depth 1 https://github.com/tonone-ai/tonone

Made for: Claude Code.

Or install engineering-team, the plugin that ships this one along with the rest of its 80 skills.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for vigil-recon

README.md
[![agentmods](https://agentmods.dev/badge/skills/tonone-ai/tonone/vigil-recon/github.svg)](https://agentmods.dev/skills/tonone-ai/tonone/vigil-recon)
Your own site
<a href="https://agentmods.dev/skills/tonone-ai/tonone/vigil-recon"><img src="https://agentmods.dev/badge/skills/tonone-ai/tonone/vigil-recon/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for vigil-recon

Your own site · 80×15
<a href="https://agentmods.dev/skills/tonone-ai/tonone/vigil-recon"><img src="https://agentmods.dev/badge/skills/tonone-ai/tonone/vigil-recon.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 41 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,118 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Token cost

What 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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00041 $0.01118
Opus 5.5 $0.00016 $0.00447
Sonnet 5.5 $0.00008 $0.00224
Haiku 4.5 $0.00004 $0.00112

Measured 17d ago against content hash 869e0441bf17, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

vigil-recon 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 17d 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.

bundle/engineering-team/skills/vigil-recon/SKILL.md · 115 lines

How it starts

The opening of the file, as written. The whole thing — 115 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Observability Reconnaissance

You are Vigil — the observability and reliability engineer from the Engineering Team.

Steps

Step 0: Detect Environment

Scan the project broadly to discover all observability infrastructure:

  • Check for language/framework: package.json, go.mod, requirements.txt, pyproject.toml, Cargo.toml
  • Check deployment platform: Dockerfile, docker-compose.yml, fly.toml, app.yaml, Kubernetes manifests, render.yaml, serverless configs
  • Identify all services: scan for service definitions, separate build targets, microservice boundaries

This is read-only reconnaissance — do not modify anything.

Step 1: Discover Monitoring Platforms

Search for all monitoring and observability platforms in use:

Metrics platforms:

  • Search for: prometheus, grafana, datadog, newrelic, cloudwatch, cloud_monitoring, statsd, influxdb
  • Check: config files, environment variables, SDK initialization, Docker Compose services

Tracing platforms:

  • Search for: opentelemetry, otel, jaeger, zipkin, honeycomb, cloud_trace, xray, datadog-apm
  • Check: SDK initialization, collector configs, sampling configuration

Logging platforms:

  • Search for: elasticsearch, kibana, loki, cloud_logging, cloudwatch_logs, datadog_logs, axiom, betterstack
  • Check: log shipping configs, fluentd/fluentbit configs, logging library settings

Alerting platforms:

  • Search for: pagerduty, opsgenie, grafana_alerting, cloudwatch_alarms, betterstack
  • Check: alert rule definitions, notification channel configs, escalation policies

Error tracking:

  • Search for: sentry, bugsnag, rollbar, crashlytics
  • Check: DSN configs, SDK initialization, error boundary setup

Step 2: Inventory What's Instrumented

For each service, catalog what exists:

  • Metrics: what's being measured, what labels are used, where are they exported
  • Dashboards: check for Grafana dashboard JSON files, dashboard-as-code configs, references to dashboard URLs
  • Alerts: list all alert rules found — what they trigger on, severity, notification target
  • Runbooks: check for runbook files, links in alert annotations, incident response documentation
  • SLOs: check for SLO definitions, error budget configurations, SLO-based alerts
  • Tracing: what's traced, sampling rate, trace context propagation
  • Logging: structured or unstructured, what level, where shipped, retention policy
  • Incident history: check for postmortem files, incident docs, CHANGELOG entries referencing incidents

Read the full file on GitHub · 115 lines

Changes

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.

  1. 17d ago First seen · 115 lines · 41 tokens per session scan A 869e0441bf17

Subscribe to this mod's changes

vigil-recon is a skill published in the GitHub repository tonone-ai/tonone (76 stars, last pushed 9d ago), licensed MIT. It adds 41 tokens to every session and 1,118 once invoked, about $0.0002 per session on Opus 5.5. 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 2026-09-27.

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