React Router Release Notes Prep
remix-run/react-router
Polishes pending React Router change files before the versioning scripts run, and decides whether a long-form What's Changed section is warranted.
Analyzes changesets with risk scoring, categorization by type and impact, and release note preparation.
Install Diff Analysis
$ npx skills add athola/claude-night-market --skill diff-analysis -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install athola/claude-night-market diff-analysis --agent claude-codeProject scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).
$ git clone --depth 1 https://github.com/athola/claude-night-market.git skills-src && mkdir -p .claude/skills && cp -r skills-src/plugins/imbue/skills/diff-analysis .claude/skills/diff-analysis && rm -rf skills-srcUse ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.
Claude Code skills documentation · loads skills from .claude/skills/
Install the "diff-analysis" agent skill from https://github.com/athola/claude-night-market/tree/master/plugins/imbue/skills/diff-analysis into .claude/skills/diff-analysis/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "diff-analysis", then confirm the skill loads.Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$skill-installer install https://github.com/athola/claude-night-market/tree/master/plugins/imbue/skills/diff-analysisType this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.
$ npx skills add athola/claude-night-market --skill diff-analysis -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install athola/claude-night-market diff-analysis --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/athola/claude-night-market.git skills-src && mkdir -p .agents/skills && cp -r skills-src/plugins/imbue/skills/diff-analysis .agents/skills/diff-analysis && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "diff-analysis" agent skill from https://github.com/athola/claude-night-market/tree/master/plugins/imbue/skills/diff-analysis into .agents/skills/diff-analysis/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "diff-analysis", then confirm the skill loads.Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add athola/claude-night-market --skill diff-analysis -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install athola/claude-night-market diff-analysis --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/athola/claude-night-market.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/plugins/imbue/skills/diff-analysis .cursor/skills/diff-analysis && rm -rf skills-srcUse ~/.cursor/skills/ instead of .cursor/skills for a personal install.
Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/
Install the "diff-analysis" agent skill from https://github.com/athola/claude-night-market/tree/master/plugins/imbue/skills/diff-analysis into .cursor/skills/diff-analysis/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "diff-analysis", then confirm the skill loads.Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gemini skills install https://github.com/athola/claude-night-market.git --path plugins/imbue/skills/diff-analysis--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.
$ npx skills add athola/claude-night-market --skill diff-analysis -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install athola/claude-night-market diff-analysis --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/athola/claude-night-market.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/plugins/imbue/skills/diff-analysis .gemini/skills/diff-analysis && rm -rf skills-srcUse ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.
Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/
Install the "diff-analysis" agent skill from https://github.com/athola/claude-night-market/tree/master/plugins/imbue/skills/diff-analysis into .gemini/skills/diff-analysis/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "diff-analysis", then confirm the skill loads.Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gh skill install athola/claude-night-market diff-analysisInstalls for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).
$ npx skills add athola/claude-night-market --skill diff-analysis -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/athola/claude-night-market.git skills-src && mkdir -p .github/skills && cp -r skills-src/plugins/imbue/skills/diff-analysis .github/skills/diff-analysis && rm -rf skills-srcUse ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.
GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/
Install the "diff-analysis" agent skill from https://github.com/athola/claude-night-market/tree/master/plugins/imbue/skills/diff-analysis into .github/skills/diff-analysis/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "diff-analysis", then confirm the skill loads.GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add athola/claude-night-market --skill diff-analysis -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install athola/claude-night-market diff-analysis --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/athola/claude-night-market.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/plugins/imbue/skills/diff-analysis .opencode/skills/diff-analysis && rm -rf skills-srcUse ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.
OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/
Install the "diff-analysis" agent skill from https://github.com/athola/claude-night-market/tree/master/plugins/imbue/skills/diff-analysis into .opencode/skills/diff-analysis/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "diff-analysis", then confirm the skill loads.OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
Facts
- Skill name
diff-analysis- GitHub stars
- 342
- Used in
- 1 other repo
- Token cost
- ~814 tokens
- SKILL.md length
- 286 words
- Files
- 4
- Skills in repo
- 160
- Repo updated
- First seen
- Licence
- MIT
At a glance
Analyzes changesets with risk scoring, categorization by type and impact, and release note preparation.
- Works in 4 steps: Establish Baseline… → Categorize Changes… → Assess Risks… → …
- Extracting insights from raw change data
- SKILL.md covers Overview, When To Use, When NOT To Use and Activation Patterns, plus 4 more sections
- Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
What it does
Diff Analysis is an agent skill from athola/claude-night-market. Analyzes changesets with risk scoring, categorization by type and impact, and release note preparation. Use when extracting insights from raw change data.
Its SKILL.md is about 810 tokens, which your agent loads only when the skill is triggered. The skill folder holds 4 other files (for example `modules/git-diff-patterns.md`, `modules/risk-assessment-framework.md` and `modules/semantic-categorization.md`).
It sits in Development, covering Changelog and release notes. It works with Git. The repository describes itself as: 23 Claude Code plugins: TDD enforcement hooks, git/PR workflows, spec-driven development, code review, project lifecycle, fix-from-error, maintenance automation, context… The licence is MIT.
When your agent uses it
- Extracting insights from raw change data
- Tasks that involve Changelog and release notes
Example prompts
- “Use the diff-analysis skill to analyz changesets with risk scoring, categorization by type and impact, and release note preparation”
- “/diff-analysis”
Workflow steps
4 steps, taken from the step headings in SKILL.md.
What it can do on your machine
Read from SKILL.md and the folder at commit 9f3eb00. It shows what the files ask for, not the result of running them.
Tool permissions
Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.
From allowed-tools in the SKILL.md frontmatter.
Runs code
No scripts in the folder and no shell commands in SKILL.md.
From the folder's file list and the shell code blocks in SKILL.md.
Network
No URLs in SKILL.md.
From URLs in SKILL.md, links to its own repository left out.
Credentials
Names no API keys, tokens, secrets or passwords.
From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.
Context cost
Diff Analysis loads about 814 tokens when it runs. Until then it costs about 42 tokens; SKILL.md has 286 words of instructions outside code blocks.
Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.
Safety
Auto-check passed
The automated check found no risky patterns in SKILL.md.
Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.
SKILL.md
The full file from athola/claude-night-market at commit 9f3eb00, republished under its MIT licence (© athola). 286 words, ~814 tokens.
Download SKILL.mdSave it as
.claude/skills/diff-analysis/SKILL.md (or your agent's skills folder). This skill also uses 3 other files; get the full folder from GitHub.- name
- diff-analysis
- description
- Analyzes changesets with risk scoring, categorization by type and impact, and release note preparation. Use when extracting insights from raw change data.
- alwaysApply
- false
- category
- analysis-methods
- tags
- changes, semantic-analysis, risk-assessment, categorization, summaries
- dependencies
- imbue:proof-of-work
- usage_patterns
- change-analysis, risk-assessment, release-preparation
- complexity
- intermediate
- model_hint
- standard
- progressive_loading
- true
- module_strategy
- workflow-based
- estimated_tokens
- 800
Diff Analysis Methodology
Overview
Structured method for analyzing changesets: categorize changes, assess risks, generate insights. Works for git diffs, configuration changes, API migrations, schema updates, or document revisions.
When To Use
- Extracting insights from raw change data
- Categorizing and prioritizing changes before code reviews
- Preparing release notes or changelogs
- Assessing migration scope and risk
When NOT To Use
- Quick context catchup - use catchup instead
- Full PR review - use review-core with pensive skills
Activation Patterns
Trigger Keywords: diff, changes, release notes, changelog, migration, impact, risk assessment
Auto-Load When: Git diffs present, change analysis requested, impact assessment needed.
Progressive Loading
Load modules based on workflow stage:
Always Load
modules/semantic-categorization.mdfor change categorization workflow
Conditional Loading
modules/risk-assessment-framework.mdwhen risk assessment is neededmodules/git-diff-patterns.mdwhen working with git repositories
Integration
- Use
sanctum:git-workspace-reviewfor git data gathering - Use
imbue:proof-of-workfor capturing analysis evidence - Use
imbue:structured-outputfor formatting final deliverables
Required TodoWrite Items
diff-analysis:baseline-establisheddiff-analysis:changes-categorizeddiff-analysis:risks-assesseddiff-analysis:summary-prepared
Mark each item complete as you finish the corresponding step.
4-Step Methodology
Step 1: Establish Baseline (diff-analysis:baseline-established)
Define comparison scope: what states are being compared, boundary of analysis, and scale metrics.
For git contexts, load modules/git-diff-patterns.md. For other contexts, compare relevant artifacts.
Step 2: Categorize Changes (diff-analysis:changes-categorized)
Group changes by semantic type. Load modules/semantic-categorization.md for change categories, semantic categories, and prioritization.
Step 3: Assess Risks (diff-analysis:risks-assessed)
Evaluate impact. Load modules/risk-assessment-framework.md for risk indicators, levels, and scoring methodology.
Step 4: Prepare Summary (diff-analysis:summary-prepared)
Synthesize findings: theme, scope with counts, risk level, review focus, dependencies. Format for downstream consumption (PR descriptions, release notes, reviews).
Exit Criteria
- All TodoWrite items completed with categorized changes and risk assessment
- Downstream workflows have semantic understanding of the changeset
- Summary ready for appropriate consumption (review, release notes, planning)
© athola, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file
Files
SKILL.md and 3 other files in plugins/imbue/skills/diff-analysis of athola/claude-night-market.
- SKILL.md
- modules/git-diff-patterns.md
- modules/risk-assessment-framework.md
- modules/semantic-categorization.md
Open the folder on GitHubat commit 9f3eb00
Used in 1 other repository
We found 1 copy of this SKILL.md (exact, near-identical or edited) in other folders, from 1 other GitHub owner. This page covers the copy in athola/claude-night-market, which our catalogue first saw on October 7, 2026.
Compare with similar skills
Diff Analysis next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.
| Skill | Stars | Used in | Tokens | Auto-check | Licence | Repo updated |
|---|---|---|---|---|---|---|
| Diff Analysis this skillathola/claude-night-market | 342 | 1 repos | ~814 | Automated safety check: Pass | MIT | |
| React Router Release Notes Prepremix-run/react-router | 57k | — | ~1.1k | Automated safety check: Pass | MIT | |
| Draft Release Notesjamiepine/voicebox | 57k | — | ~941 | Automated safety check: Pass | MIT | |
| Mole Release Notes Publishertw93/Mole | 69k | — | ~1.9k | Automated safety check: Pass | GPL-3.0 | |
| Release Bumpjamiepine/voicebox | 57k | — | ~1.1k | Automated safety check: Pass | MIT | |
| Git Workflow and Versioningaddyosmani/agent-skills | 102k | 2 repos | ~3.5k | Automated safety check: Notes | MIT |
Similar skills
Draft Release Notes
jamiepine/voicebox
Writes or refreshes the Unreleased section of CHANGELOG.md as a themed narrative built from the commits, PRs and diff since the last version tag.
Mole Release Notes Publisher
tw93/Mole
Publishes curated, bilingual release notes for an existing Mole version tag with gh release edit, including contributor thanks and reactions, after the release workflow finishes.
Release Bump
jamiepine/voicebox
Ends a release cycle by moving the Unreleased changelog notes under a dated version heading, bumping version files with bumpversion and tagging the commit.
Git Workflow and Versioning
addyosmani/agent-skills
Sets git habits for every change: short-lived branches, atomic commits with descriptive messages, clean pull requests, plus versioning, tagging and changelogs for releases.
Verdaccio Pull Request Workflow
verdaccio/verdaccio
Takes a change through a verdaccio pull request: branch, local checks, changeset, title and body, labels, CI and review rounds, and ports to other release lines.
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Questions about Diff Analysis
What does Diff Analysis do?
Analyzes changesets with risk scoring, categorization by type and impact, and release note preparation. Diff Analysis is an agent skill from athola/claude-night-market. Analyzes changesets with risk scoring, categorization by type and impact, and release note preparation.
When should I use Diff Analysis?
Diff Analysis fits situations like: extracting insights from raw change data; tasks that involve Changelog and release notes.
How do I install Diff Analysis in Claude Code?
Run `npx skills add athola/claude-night-market --skill diff-analysis -a claude-code`. Or copy the skill folder (plugins/imbue/skills/diff-analysis in athola/claude-night-market) into .claude/skills/diff-analysis in your project. Claude Code loads it when a task matches its description.
How do I install Diff Analysis in Codex?
Run `npx skills add athola/claude-night-market --skill diff-analysis -a codex`. Or copy the skill folder (plugins/imbue/skills/diff-analysis in athola/claude-night-market) into .agents/skills/diff-analysis in your project. Codex loads it when a task matches its description.
Can I use Diff Analysis in Cursor, Gemini CLI or GitHub Copilot?
Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add athola/claude-night-market --skill diff-analysis -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/diff-analysis, .gemini/skills/diff-analysis, .github/skills/diff-analysis and .opencode/skills/diff-analysis in your project.
What does Diff Analysis need to run?
SKILL.md names no scripts, command-line tools or credentials: Diff Analysis is instructions for the agent only.
Does Diff Analysis access the network?
SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.
Is Diff Analysis safe to install?
Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.
What licence does Diff Analysis use?
Diff Analysis is published under the MIT licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.
How many tokens does Diff Analysis use?
About 814 tokens (SKILL.md is roughly 3.3k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.
What are the alternatives to Diff Analysis?
Skills that share tags, products or a category with Diff Analysis: React Router Release Notes Prep (remix-run/react-router, 57k stars), Draft Release Notes (jamiepine/voicebox, 57k stars), Mole Release Notes Publisher (tw93/Mole, 69k stars) and Release Bump (jamiepine/voicebox, 57k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Diff Analysis?
athola (a GitHub user) maintains it in athola/claude-night-market, which has 342 GitHub stars. The repository holds 160 skills in this directory. The repository was last updated on October 6, 2026.
Source: athola/claude-night-market on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.