# Browser Testing with DevTools

> Browser Testing with DevTools is a community-maintained skill from addyosmani. Anomity scores its risk at 40 out of 100 (medium).

- **Canonical URL:** https://catalog.anomity.ai/skill/browser-testing-with-devtools
- **Kind:** Skill
- **Publisher:** addyosmani
- **Trust level:** community
- **Risk score:** 40/100 (medium)
- **Website:** https://github.com/addyosmani
- **Last updated:** 2026-09-02
- **JSON:** https://catalog.anomity.ai/api/entries/skill/browser-testing-with-devtools

## Description

Tests in a real browser via Chrome DevTools — inspecting the DOM, watching network activity, and reproducing behaviour the way a developer would rather than through a synthetic test harness.

Declared capability is browser control. The distinction from a headless test runner matters for risk: a skill driving your actual browser can reach internal hosts and act inside authenticated sessions. Point it at a dedicated profile. As a debugging aid it is genuinely strong, because it observes what the page does instead of what the test asserts.

## Why it scored 40

The score starts at the catalog's neutral base of 50 and moves only through the signals below. The formula is published at https://catalog.anomity.ai/about — there is no model and no hidden heuristic.

| Signal | Contribution | Severity | Evidence |
| --- | --- | --- | --- |
| Established community project | -10 | trust offset |  |

Clamped result: **40/100**, band **medium**.

## Capabilities

| Capability | Name | Security implication |
| --- | --- | --- |
| `browser:control` | Browser control | Drives a browser session. Combined with credential access can impersonate the user on web services. |

## Related skills

- [Browser Act](https://catalog.anomity.ai/skill/browser-act) — risk 95 (critical)
- [Anti-Detect Browser](https://catalog.anomity.ai/skill/anti-detect-browser) — risk 70 (high)
- [Accessibility](https://catalog.anomity.ai/skill/accessibility-audit) — risk 40 (medium)
- [Audit Website](https://catalog.anomity.ai/skill/audit-website) — risk 40 (medium)
- [NotebookLM Skill](https://catalog.anomity.ai/skill/notebooklm-skill) — risk 40 (medium)
- [Agent Browser](https://catalog.anomity.ai/skill/agent-browser) — risk 10 (low)

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Source: Anomity Catalog (https://catalog.anomity.ai/). Scoring methodology: https://catalog.anomity.ai/about. Machine-readable index: https://catalog.anomity.ai/llms.txt · https://catalog.anomity.ai/openapi.json