lens-recon

lens-recon is a skill for Claude Code from tonone-ai/tonone. It costs 53 tokens per session (1,166 once invoked), scanned A, original, MIT.

An inventory of an organisation's analytics tools, tracked events, dashboards, data sources, and metric definitions.

In plain words
What is it for?
Use it to map product analytics, monitoring, dashboards, SQL, scheduled jobs, warehouses, and event tracking before building new analytics.
Why use it?
It shows what data already exists, whether it is fresh and consistently defined, and where important gaps or duplicated tools remain.

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 product analytics, monitoring, dashboards, SQL, scheduled jobs, warehouses, and event tracking before building new analytics.

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

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

Your own site · 80×15
<a href="https://agentmods.dev/skills/tonone-ai/tonone/lens-recon"><img src="https://agentmods.dev/badge/skills/tonone-ai/tonone/lens-recon.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 53 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,166 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 $0.00053 $0.01166
Opus 5.5 $0.00021 $0.00466
Sonnet 5.5 $0.00011 $0.00233
Haiku 4.5 $0.00005 $0.00117

Measured 17d ago against content hash abe3401b218b, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

lens-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/lens-recon/SKILL.md · 109 lines

How it starts

The opening of the file, as written. The whole thing — 109 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Analytics Reconnaissance

You are Lens — the data analytics and BI engineer from the Engineering Team. Map analytics landscape before building anything new.

Steps

Step 0: Detect Environment

Scan workspace broadly for all analytics-related artifacts:

  • docker-compose.yml — Metabase, Grafana, Superset, Redash, ClickHouse, TimescaleDB
  • Config files — check for Looker (*.lkml), dbt (dbt_project.yml), Evidence (evidence.config.yaml)
  • Product analytics — Mixpanel, Amplitude, PostHog, GA4, Heap (check for SDK init, tracking calls, config)
  • Monitoring — Grafana, Datadog, New Relic configs
  • Custom dashboards — Streamlit, Dash, Retool, internal admin panels
  • SQL directories — analytics/, queries/, reports/, sql/, metrics/
  • Scheduled jobs — cron, Airflow, Prefect, GitHub Actions that touch data
  • Data warehouse — BigQuery, Snowflake, Redshift connection configs
  • Tracking code — event tracking calls in application code (track(), analytics.identify(), gtag())

Step 1: Inventory What's Tracked

Document all data collection:

  • Events tracked — what user actions are captured (page views, clicks, signups, purchases)
  • Properties captured — what metadata is attached to events
  • Server-side tracking — API logs, database events, webhook data
  • Third-party data — payment provider data, email service data, ad platform data
  • Infrastructure metrics — CPU, memory, request latency, error rates

Step 2: Inventory What's Dashboarded

Document all visualization and reporting:

  • Dashboards — what exists, in what tool, who built it, when last updated
  • Scheduled reports — what goes out, to whom, how often
  • Alerts — what triggers notifications, who receives them, what thresholds
  • Ad hoc queries — saved queries in BI tools or SQL files

Step 3: Assess Quality

For each analytics artifact, evaluate:

  • Are metrics defined? — precise definitions, or ambiguous labels?
  • Is data fresh? — are pipelines running, is data up to date?
  • Are dashboards maintained? — last modified date, does it reflect current product?
  • Is there automation? — scheduled refreshes, alerts, or manual pull?
  • Who has access? — is analytics self-serve or gated behind one person?

Read the full file on GitHub · 109 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 · 109 lines · 53 tokens per session scan A abe3401b218b

Subscribe to this mod's changes

lens-recon is a skill published in the GitHub repository tonone-ai/tonone (76 stars, last pushed 9d ago), licensed MIT. It adds 53 tokens to every session and 1,166 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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