Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx agentmods add skills/zai-org/synapse/git-essentialsnpx skills add zai-org/Synapse --skill git-essentialsgit clone --depth 1 https://github.com/zai-org/SynapseWhat it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5 | $0.00019 | $0.01895 |
| Opus 5 | $0.00010 | $0.00948 |
| Sonnet 5 | $0.00004 | $0.00379 |
| Haiku 4.5 | $0.00002 | $0.00189 |
Grade A, and why
git-essentials scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 2d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
Copies of this mod
2 near-identical copies found in the catalogue:
- git-essentials — 100% identical, 0 lines differ
- git-essentials — 91% identical, 20 lines differ
How it starts
The opening of the file, as written. The whole thing — 432 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Git Essentials
Essential Git commands for version control and collaboration.
Initial Setup
# Configure user
git config --global user.name "Your Name"
git config --global user.email "[email protected]"
# Initialize repository
git init
# Clone repository
git clone https://github.com/user/repo.git
git clone https://github.com/user/repo.git custom-name
Basic Workflow
Staging and committing
# Check status
git status
# Add files to staging
git add file.txt
git add .
git add -A # All changes including deletions
# Commit changes
git commit -m "Commit message"
# Add and commit in one step
git commit -am "Message"
# Amend last commit
git commit --amend -m "New message"
git commit --amend --no-edit # Keep message
Viewing changes
# Show unstaged changes
git diff
# Show staged changes
git diff --staged
# Show changes in specific file
git diff file.txt
# Show changes between commits
git diff commit1 commit2
Branching & Merging
Branch management
# List branches
git branch
git branch -a # Include remote branches
# Create branch
git branch feature-name
# Switch branch
git checkout feature-name
git switch feature-name # Modern alternative
# Create and switch
git checkout -b feature-name
git switch -c feature-name
# Delete branch
git branch -d branch-name
git branch -D branch-name # Force delete
# Rename branch
git branch -m old-name new-name
Merging
# Merge branch into current
git merge feature-name
# Merge with no fast-forward
git merge --no-ff feature-name
# Abort merge
git merge --abort
# Show merge conflicts
git diff --name-only --diff-filter=U
Remote Operations
Managing remotes
# List remotes
git remote -v
# Add remote
git remote add origin https://github.com/user/repo.git
# Change remote URL
git remote set-url origin https://github.com/user/new-repo.git
# Remove remote
git remote remove origin
Syncing with remote
# Fetch from remote
git fetch origin
# Pull changes (fetch + merge)
git pull
# Pull with rebase
git pull --rebase
# Push changes
git push
# Push new branch
git push -u origin branch-name
# Force push (careful!)
git push --force-with-lease
What ships with it
2 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- 2d ago First seen · 432 lines · 19 tokens per session scan A 91afbc572326
git-essentials is a skill published in the GitHub repository zai-org/Synapse (434 stars, last pushed 1mo ago), licensed Apache-2.0. It adds 19 tokens to every session and 1,895 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
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