deprecated-api-updater

Identify and replace deprecated API usage in source code with modern alternatives. Use when: (1) Modernizing legacy codebases, (2) Upgrading framework versions (React, Django, Spring, etc.), (3) Fixing deprecation warnings in build output, (4) Preparing for major version upgrades, (5) Ensuring code uses current best practices. Supports Python, JavaScript/TypeScript, Java, and other major languages with both AST-based detection and pattern matching for accurate identification and automated replacement with validation.

1.60x

Quality

92%

Does it follow best practices?

Impact

90%

1.60x

Average score across 3 eval scenarios

Securityby

Passed

No known issues

Evaluation results

100%

46%

Modernize Legacy Python Data Utilities

Python deprecated API detection and replacement workflow

Criteria

Without context

With context

Detect script used

100%

Replace script dry-run

100%

Replace script applied

100%

Backup files created

100%

collections.abc replacement

100%

subprocess replaces os.popen

100%

time.perf_counter replaces time.clock

100%

pd.concat replaces DataFrame.append

100%

np.int_ / np.float64 used

100%

Language flag used

100%

subprocess import added

100%

84%

20%

Update Legacy Node.js Service APIs

JavaScript/Node.js deprecated API replacement

Criteria

Without context

With context

Replace script used

50%

JavaScript language flag

100%

Dry-run before apply

70%

Buffer.alloc / Buffer.from used

100%

new URL() replaces url.parse

100%

express.json replaces body-parser

100%

moment.js replaced

100%

Backup files present

Modernization report

100%

88%

36%

Deprecation Audit Across Multiple Repositories

Multi-project deprecation audit with JSON output and CI integration

Criteria

Without context

With context

Detect script used

100%

JSON format flag used

100%

Language flag per scan

JSON report files created

100%

CI workflow file created

100%

CI calls detect script

100%

CI fails on findings

100%

Summary report produced

100%

Repository: ArabelaTso/Skills-4-SE
Commit: 0f00a4f

Evaluated: 29 days ago
Agent: Claude Code
Model: Claude Sonnet 4.6

Table of Contents

Modernize Legacy Python Data Utilities Update Legacy Node.js Service APIs Deprecation Audit Across Multiple Repositories

Is this your skill?

If you maintain this skill, you can claim it as your own. Once claimed, you can manage eval scenarios, bundle related skills, attach documentation or rules, and ensure cross-agent compatibility.