DOCX Tracked Changes
mohitagw15856/pm-claude-skills
Produce properly-formatted tracked changes for a Word document.
Implementation details for EF Core change tracking. An agent skill from dotnet/efcore.
OfficialMITAuto-check passed
Install Change Tracking
$ npx skills add dotnet/efcore --skill change-tracking -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install dotnet/efcore change-tracking --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/dotnet/efcore.git skills-src && mkdir -p .claude/skills && cp -r skills-src/.agents/skills/change-tracking .claude/skills/change-tracking && 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 "change-tracking" agent skill from https://github.com/dotnet/efcore/tree/main/.agents/skills/change-tracking into .claude/skills/change-tracking/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "change-tracking", 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/dotnet/efcore/tree/main/.agents/skills/change-trackingType 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 dotnet/efcore --skill change-tracking -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install dotnet/efcore change-tracking --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/dotnet/efcore.git skills-src && mkdir -p .agents/skills && cp -r skills-src/.agents/skills/change-tracking .agents/skills/change-tracking && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "change-tracking" agent skill from https://github.com/dotnet/efcore/tree/main/.agents/skills/change-tracking into .agents/skills/change-tracking/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "change-tracking", 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 dotnet/efcore --skill change-tracking -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install dotnet/efcore change-tracking --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/dotnet/efcore.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/.agents/skills/change-tracking .cursor/skills/change-tracking && 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 "change-tracking" agent skill from https://github.com/dotnet/efcore/tree/main/.agents/skills/change-tracking into .cursor/skills/change-tracking/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "change-tracking", 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/dotnet/efcore.git --path .agents/skills/change-tracking--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 dotnet/efcore --skill change-tracking -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install dotnet/efcore change-tracking --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/dotnet/efcore.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/.agents/skills/change-tracking .gemini/skills/change-tracking && 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 "change-tracking" agent skill from https://github.com/dotnet/efcore/tree/main/.agents/skills/change-tracking into .gemini/skills/change-tracking/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "change-tracking", 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 dotnet/efcore change-trackingInstalls 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 dotnet/efcore --skill change-tracking -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/dotnet/efcore.git skills-src && mkdir -p .github/skills && cp -r skills-src/.agents/skills/change-tracking .github/skills/change-tracking && 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 "change-tracking" agent skill from https://github.com/dotnet/efcore/tree/main/.agents/skills/change-tracking into .github/skills/change-tracking/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "change-tracking", 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 dotnet/efcore --skill change-tracking -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install dotnet/efcore change-tracking --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/dotnet/efcore.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/.agents/skills/change-tracking .opencode/skills/change-tracking && 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 "change-tracking" agent skill from https://github.com/dotnet/efcore/tree/main/.agents/skills/change-tracking into .opencode/skills/change-tracking/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "change-tracking", 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
change-tracking- GitHub stars
- 15k
- Token cost
- ~492 tokens
- SKILL.md length
- 184 words
- Files
- 1
- Skills in repo
- 17
- Repo updated
- First seen
- Licence
- MIT
At a glance
Implementation details for EF Core change tracking. An agent skill from dotnet/efcore.
- Changing InternalEntityEntry
- SKILL.md covers Core Components, Change Detection, Testing and Common Pitfalls, plus 1 more section
- Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
- SnapshotFactoryFactory
What it does
Change Tracking is an agent skill from dotnet/efcore, published by the product's own GitHub organization. Implementation details for EF Core change tracking. Use when changing InternalEntityEntry, ChangeDetector, SnapshotFactoryFactory, or related entity state, snapshot, or property accessor code.
Its SKILL.md is about 490 tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.
The repository describes itself as: EF Core is a modern object-database mapper for .NET. It supports LINQ queries, change tracking, updates, and schema migrations. The licence is MIT.
When your agent uses it
- Changing InternalEntityEntry
- SnapshotFactoryFactory
- Related entity state
- Property accessor code
Example prompts
- “/change-tracking”
What it can do on your machine
Read from SKILL.md and the folder at commit 7adff35. 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
Change Tracking loads about 492 tokens when it runs. Until then it costs about 52 tokens; SKILL.md has 184 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 dotnet/efcore at commit 7adff35, republished under its MIT licence (© dotnet). 184 words, ~492 tokens.
Download SKILL.mdSave it as
.claude/skills/change-tracking/SKILL.md (or your agent's skills folder).- name
- change-tracking
- description
- Implementation details for EF Core change tracking. Use when changing InternalEntityEntry, ChangeDetector, SnapshotFactoryFactory, or related entity state, snapshot, or property accessor code.
- user-invocable
- false
Change Tracking
Manages entity states and detects changes for SaveChanges().
Core Components
StateManager— owns tracked entries, identity/reference maps, fixup, cascades, notifications, and changed countsInternalEntryBaseand derived classes — own per-entry state, flags, values, snapshots, and ordered state transitionsChangeDetector— compares current values with baselines and reports changes through entry mutation APIsSnapshotFactoryFactorysubclasses — create passive original- and relationship-value baselinesIdentityMap— permits one active entry per key; shared identity pairs a replacement with the priorDeletedentryPropertyAccessorsFactory,ClrPropertyGetterFactoryandClrPropertySetterFactorycompile property accessors for efficient snapshotting and change detection- Ordinals in
indicesparameter specify element at each complex collection depth
- Ordinals in
Change Detection
- Snapshot and notification strategies both call
SetPropertyModified()to keep property flags and entity state consistent. SetEntityState()validates values, updates flags and complex entries, changes state, then runs manager bookkeeping hooks.
Testing
Unit tests: test/EFCore.Tests/ChangeTracking/. Functional tests: test/EFCore.Specification.Tests/GraphUpdates/.
Common Pitfalls
| Pitfall | Solution |
|---|---|
| There is a failure when there is shared identity entry (Added and Deleted) | Add code that checks SharedIdentityEntry |
Validation
DetectChanges()identifies modified properties via snapshot comparison- Setting original values marks properties as modified or unchanged based on comparison with current values
© dotnet, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file
Files
Just SKILL.md in .agents/skills/change-tracking of dotnet/efcore.
Open the folder on GitHubat commit 7adff35
Compare with similar skills
Change Tracking 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 |
|---|---|---|---|---|---|---|
| Change Tracking this skilldotnet/efcore | 15k | — | ~492 | Automated safety check: Pass | MIT | |
| DOCX Tracked Changesmohitagw15856/pm-claude-skills | 1.4k | — | ~1.4k | Automated safety check: Pass | MIT | |
| Cost Trackingaffaan-m/ECC | 274k | 1 repos | ~1.3k | Automated safety check: Pass | MIT | |
| Feature Trackingsickn33/agentic-awesome-skills | 47k | 1 repos | ~2.5k | Automated safety check: Warn | MIT | |
| Make Changesremix-run/remix | 33k | — | ~2.4k | Automated safety check: Pass | MIT | |
| Time Trackingsickn33/agentic-awesome-skills | 47k | 1 repos | ~3.8k | Automated safety check: Pass | MIT |
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Questions about Change Tracking
What does Change Tracking do?
Implementation details for EF Core change tracking. An agent skill from dotnet/efcore. Change Tracking is an agent skill from dotnet/efcore, published by the product's own GitHub organization. Implementation details for EF Core change tracking.
When should I use Change Tracking?
Change Tracking fits situations like: changing InternalEntityEntry; snapshotFactoryFactory; related entity state; property accessor code.
How do I install Change Tracking in Claude Code?
Run `npx skills add dotnet/efcore --skill change-tracking -a claude-code`. Or copy the skill folder (.agents/skills/change-tracking in dotnet/efcore) into .claude/skills/change-tracking in your project. Claude Code loads it when a task matches its description.
How do I install Change Tracking in Codex?
Run `npx skills add dotnet/efcore --skill change-tracking -a codex`. Or copy the skill folder (.agents/skills/change-tracking in dotnet/efcore) into .agents/skills/change-tracking in your project. Codex loads it when a task matches its description.
Can I use Change Tracking 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 dotnet/efcore --skill change-tracking -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/change-tracking, .gemini/skills/change-tracking, .github/skills/change-tracking and .opencode/skills/change-tracking in your project.
What does Change Tracking need to run?
SKILL.md names no scripts, command-line tools or credentials: Change Tracking is instructions for the agent only.
Does Change Tracking 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 Change Tracking 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 Change Tracking use?
Change Tracking 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 Change Tracking use?
About 492 tokens (SKILL.md is roughly 2k 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 Change Tracking?
Skills that share tags, products or a category with Change Tracking: DOCX Tracked Changes (mohitagw15856/pm-claude-skills, 1.4k stars), Cost Tracking (affaan-m/ECC, 274k stars), Feature Tracking (sickn33/agentic-awesome-skills, 47k stars) and Make Changes (remix-run/remix, 33k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Change Tracking?
dotnet (a GitHub organization, an official publisher) maintains it in dotnet/efcore, which has 14,800 GitHub stars. The repository holds 17 skills in this directory. The repository was last updated on October 7, 2026.
Source: dotnet/efcore on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.