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@lenml/apply_edits

CLI tool for batch file editing with search/replace patterns. Atomic writes (temp file + rename), encoding auto-detection, trimmed line matching.

Windows PowerShell Note: PowerShell 5 (powershell.exe) defaults to UTF-16 LE when piping, which breaks encoding. Upgrade to PowerShell 7+ (pwsh.exe).

Install

npm install -g @lenml/apply_edits

Usage

apply-diff (Recommended — SEARCH/REPLACE blocks via stdin)

Reads SEARCH/REPLACE blocks from stdin and applies edits atomically. Prefer this over shell arguments to avoid escaping issues.

cat <<'EOF' | apply-diff --workdir .
src/file.ts
<<<<<<< SEARCH
const a = 1;
=======
const a = 2;
>>>>>>> REPLACE
EOF

Or read from a file:

apply-diff --workdir . --file changes.diff

See SKILL.md for full format documentation.

apply-edits (CLI arguments — triples)

See SKILL.md for full documentation.

apply-edits --workdir . src/file.ts "old code" "new code"

Tip: When editing multiple files or multi-line text, use apply-diff with stdin instead to avoid shell escaping complexity.

Install as Agent Skill

install it: https://raw.githubusercontent.com/lenML/apply_edits_tool/refs/heads/main/skill/SKILL.md

install it: https://cdn.jsdelivr.net/npm/@lenml/apply_edits/skill/SKILL.md

install it: https://unpkg.com/@lenml/apply_edits/skill/SKILL.md