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Chat Customizations Evaluations installs statistics

By Microsoft (224 listings) · VS Code Marketplace · Programming Languages

Extension for analyzing, validating, and improving AI prompts

View on VS Code Marketplace Fresh · Oct 21, 2026

Chat Customizations Evaluations has 992,575 recorded installs on VS Code Marketplace, ranking #542 of 2,502 tracked listings.

Installs
992,575
Official API · Oct 21, 2026
7-day growth
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Insufficient history
30-day growth
—
Insufficient history
90-day growth
—
Insufficient history
Rank
#542
Among tracked VS Code Marketplace listings

Rating: 2.08 / 5 from 26 ratings

About Chat Customizations Evaluations

Chat Customizations Evaluations

License: MIT

An extension for analyzing and improving AI prompt files. Works with SKILL.md, .agent.md, .instructions.md, and .prompt.md files — providing LLM-powered semantic analysis directly in VS Code.

Features

LLM-Powered Analysis (via GitHub Copilot)
  • Contradiction Detection — Finds logical, behavioral, and format conflicts
  • Semantic Ambiguity — Ambiguity analysis with rewrite suggestions
  • Persona Consistency — Detects conflicting personality traits and tone drift
  • Cognitive Load Assessment — Warns about overly complex prompts with too many nested conditions
  • Semantic Coverage — Identifies gaps in intent handling and missing error paths
  • Composition Conflict Analysis — Detects conflicts between a prompt and other prompt files it imports via markdown links
Waza Integration
  • Create Eval Scaffold — Generates eval files for a skill via waza new eval <skill-name>
  • Run Evaluation — Executes skill evaluation via waza run <wazaEval.yaml> --context-dir <skill-dir>
  • Automatic Local Fallback — If waza is not on PATH, commands attempt a local fallback via go run ./cmd/waza when a sibling waza repo is available
Editor Integration
  • Editor Title Bar — Analyze Prompt button appears when editing prompt files
  • Command Palette — Chat Customizations Evaluations: Analyze Prompt command
  • Problems Panel — All diagnostics appear in the standard VS Code Problems panel with precise line and column locations

Supported File Types

PatternType
SKILL.mdSkill
*.agent.mdAgent
*.instructions.mdInstructions
*.prompt.mdPrompt (VS Code only)

Usage

  1. Open any supported prompt file in VS Code
  2. Run Chat Customizations Evaluations: Analyze Prompt from the command palette or click the beaker icon in the editor title bar
  3. View results in the Problems panel (Ctrl+Shift+M / Cmd+Shift+M)

LLM analysis requires GitHub Copilot — no API keys needed. Just sign in to GitHub Copilot in VS Code.

You can also trigger analysis from Copilot Chat with the slash command /analyze-prompt.

Commands
CommandDescription
Chat Customizations Evaluations: Analyze PromptRun full LLM-powered analysis on the active file
/analyze-promptRun analysis for the active customization file and summarize diagnostics in chat
Chat Customizations Evaluations: Create Waza Eval ScaffoldCreate wazaEval.yaml and task files for the active skill
Chat Customizations Evaluations: Run Waza EvaluationRun the skill's eval suite
Chat Customizations Evaluations: Download Waza BinaryDownload the latest platform-specific Waza binary and configure the extension to use it
Chat Customizations Evaluations: Open Analysis and Fix User GuideOpen the analysis and fix workflow guide
Guides
  • Analysis and Fix User Guide — Learn how to run analysis, interpret diagnostics, implement suggestions, and optionally run Waza evaluations.
  • Waza User Guide — Set up and run Waza evaluations, configure graders, and validate your customizations.
Configuration
SettingDefaultDescription
chatCustomizationsEvaluations.enabletrueEnable/disable the extension
chatCustomizationsEvaluations.trace.serveroffTrace communication between VS Code and the language server
chatCustomizationsEvaluations.customDiagnostics[]Array of custom diagnostic objects with name and description fields
chatCustomizationsEvaluations.waza.commandwazaCommand used to run Waza (for example /usr/local/bin/waza)
Telemetry

The extension now emits usage telemetry events for activation, analysis commands, diagnostics fixes, and Waza workflows.

  • Telemetry is gated by VS Code telemetry settings.
  • Events only include coarse metadata (for example counts, durations, and success/failure outcomes).
  • File contents, prompt text, and file paths are not sent in telemetry event payloads.

To export telemetry to your own collector, set these environment variables before launching VS Code:

  • CHAT_CUSTOMIZATIONS_EVALUATIONS_TELEMETRY_ENDPOINT: HTTPS endpoint that accepts JSON POST payloads.
  • CHAT_CUSTOMIZATIONS_EVALUATIONS_TELEMETRY_AUTH_TOKEN: Optional bearer token added as the Authorization header.

License

MIT

Description from the VS Code Marketplace listing.

  • ai
  • language-server
  • llm
  • prompt
  • prompt-engineering

README badge

Show your rank in a README or on your website. The badge updates automatically.

Charts

Images: 30d · 1y · all time · 1600×900 dark

Adoption over time

Chat Customizations Evaluations installs on VS Code Marketplace, last 90 days: 992,575 installs as of Oct 21, 2026.Chat Customizations EvaluationsInstalls on VS Code Marketplace · Last 90 days992,575installs988.5K989K989.5K990K990.5K991K991.5K992K992.5K993KJul 23Aug 7Aug 22Sep 6Sep 21Oct 6Oct 21installsobservedarchived (Internet Archive)no observationsOct 16, 2026 – Oct 21, 2026 · 6 observations · Updated Oct…pluginstats.com
Chat Customizations Evaluations installs on VS Code Marketplace, last 90 days: 992,575 installs as of Oct 21, 2026.

7/30/90-day growth

Chat Customizations Evaluations installs growth on VS Code Marketplace: 7-day growth unavailable, 30-day growth unavailable, 90-day growth unavailable.Chat Customizations EvaluationsInstalls growth on VS Code Marketplace992,575installs now7-day growthinsufficient historyInsufficient history30-day growthinsufficient historyInsufficient history90-day growthinsufficient historyInsufficient historyGrowth vs. nearest observation to each baseline date · Updated Oct 21, 2026pluginstats.com
Chat Customizations Evaluations installs growth on VS Code Marketplace: 7-day growth unavailable, 30-day growth unavailable, 90-day growth unavailable.

Ranking history

Chat Customizations Evaluations VS Code Marketplace ranking history: currently #542 (by installs).Chat Customizations EvaluationsVS Code Marketplace ranking · by installs · Last 90 days#542current rank#540#541#542#543#544#545Jul 23Aug 7Aug 22Sep 6Sep 21Oct 6Oct 21rankOct 16, 2026 – Oct 21, 2026 · 6 observations · Updated Oct 21, 2026pluginstats.com
Chat Customizations Evaluations VS Code Marketplace ranking history: currently #542 (by installs).

Ratings over time

Chat Customizations Evaluations ratings on VS Code Marketplace, last 90 days: 26 ratings as of Oct 21, 2026.Chat Customizations EvaluationsRatings on VS Code Marketplace · Last 90 days26ratings2525.225.425.625.826Jul 23Aug 7Aug 22Sep 6Sep 21Oct 6Oct 21ratingsobservedarchived (Internet Archive)no observationsOct 16, 2026 – Oct 21, 2026 · 6 observations · Updated Oct…pluginstats.com
Chat Customizations Evaluations ratings on VS Code Marketplace, last 90 days: 26 ratings as of Oct 21, 2026.

Listing placement

All VS Code Marketplace2,502 listings · 126 pages · 1,253 shown · page 28, #2 (overall #542)
All VS Code Marketplace: every listing in installs order

Listing placement

Programming Languages792 listings · 40 pages · page 11, #3 (overall #203)
Programming Languages: every listing in installs order

Listing placement

Linters252 listings · 13 pages · page 4, #20 (overall #80)
Linters: every listing in installs order

Filled points are observed values; hollow points come from Internet Archive snapshots of the listing page. Dashed segments span periods with no observations — values between points are not interpolated.

Each band is one page of 20. Installs on a linear scale. Placement is projected from installs, so it can differ from the marketplace's own sort order. Hover a dot to see the listing.

Recent observations

Full history (6)
Recent installs observations for Chat Customizations Evaluations
Date (UTC)InstallsChange vs. previous
992,575+927
991,648+1.3K
990,387+416
989,971+432
989,539+609
988,930—

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Data source

Install counts, average rating, and rating counts come from the public Visual Studio Marketplace gallery API. Installs are cumulative and exclude updates.

Listing: https://marketplace.visualstudio.com/items?itemName=ms-vscode.vscode-chat-customizations-evaluations. First seen Oct 16, 2026; last successful collection Oct 21, 2026. See the methodology.