# Git Changes Context

> Obtain the unified diff of the current branch against its base, trying remote then local base refs in a fixed order, and report which command produced it.

- Skill: `davidvujic/git-changes-context` (Agent Skill)
- Install (CLI): `npx skillmds@latest add davidvujic/git-changes-context`
- Raw SKILL.md: https://api.skillmd.com/api/skills/davidvujic/git-changes-context/raw
- Safety review: pending
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: Docs & Writing
- Author: davidvujic (https://skillmd.com/u/davidvujic)
- Updated: 2026-09-17
- Page: https://skillmd.com/skills/davidvujic/git-changes-context

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# Git Changes Context Skill

Provide the branch's change set (unified diff) for agents that review, summarize, or describe changes.

## Procedure

Run each command with `eca__git`, in this order, and stop at the first that succeeds with non-empty output:

1. `git diff origin/HEAD...HEAD`
2. `git diff origin/main...HEAD`
3. `git diff origin/master...HEAD`
4. `git diff main...HEAD`
5. `git diff master...HEAD`

Try every step before giving up; an error or empty output means "next step", not "no diff".

## Result

Report three things to the caller:

- `diff_source_command`: the exact command that produced the diff.
- `diff_context`: the raw unified diff, unmodified.
- `error`: `NO_DIFF_FOUND` when all five commands errored or returned nothing; otherwise none.

Never fabricate or summarize the diff here; consumers do that.