Agent skill

Gmail Sync

by Alex8791-cyber in Alex8791-cyber/cognithor

API integration skill that fetches Gmail messages, syncs inbox labels, and processes attachments via the Gmail REST API.

Apache-2.0Auto-check passedProductivity & Automation

Install Gmail Sync

skills CLI

$ npx skills add Alex8791-cyber/cognithor --skill gmail-sync -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI

$ gh skill install Alex8791-cyber/cognithor gmail-sync --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy

$ git clone --depth 1 https://github.com/Alex8791-cyber/cognithor.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/gmail_sync .claude/skills/gmail-sync && rm -rf skills-src

Use ~/.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/

Paste into Claude Code

Install the "gmail-sync" agent skill from https://github.com/Alex8791-cyber/cognithor/tree/main/skills/gmail_sync into .claude/skills/gmail-sync/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "gmail-sync", 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

$skill-installer install https://github.com/Alex8791-cyber/cognithor/tree/main/skills/gmail_sync

Type 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.

skills CLI

$ npx skills add Alex8791-cyber/cognithor --skill gmail-sync -a codex

Project install goes to .agents/skills/; add -g for ~/.codex/skills/.

GitHub CLI

$ gh skill install Alex8791-cyber/cognithor gmail-sync --agent codex

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/Alex8791-cyber/cognithor.git skills-src && mkdir -p .agents/skills && cp -r skills-src/skills/gmail_sync .agents/skills/gmail-sync && rm -rf skills-src

Use ~/.agents/skills/ instead of .agents/skills for a personal install.

Codex skills documentation · loads skills from .agents/skills/

Paste into Codex

Install the "gmail-sync" agent skill from https://github.com/Alex8791-cyber/cognithor/tree/main/skills/gmail_sync into .agents/skills/gmail-sync/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "gmail-sync", 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.

skills CLI

$ npx skills add Alex8791-cyber/cognithor --skill gmail-sync -a cursor

Project install goes to .agents/skills/; add -g for ~/.cursor/skills/.

GitHub CLI

$ gh skill install Alex8791-cyber/cognithor gmail-sync --agent cursor

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/Alex8791-cyber/cognithor.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/skills/gmail_sync .cursor/skills/gmail-sync && rm -rf skills-src

Use ~/.cursor/skills/ instead of .cursor/skills for a personal install.

Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/

Paste into Cursor

Install the "gmail-sync" agent skill from https://github.com/Alex8791-cyber/cognithor/tree/main/skills/gmail_sync into .cursor/skills/gmail-sync/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "gmail-sync", 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

$ gemini skills install https://github.com/Alex8791-cyber/cognithor.git --path skills/gmail_sync

--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.

skills CLI

$ npx skills add Alex8791-cyber/cognithor --skill gmail-sync -a gemini-cli

Project install goes to .agents/skills/; add -g for ~/.gemini/skills/.

GitHub CLI

$ gh skill install Alex8791-cyber/cognithor gmail-sync --agent gemini-cli

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/Alex8791-cyber/cognithor.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/skills/gmail_sync .gemini/skills/gmail-sync && rm -rf skills-src

Use ~/.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/

Paste into Gemini CLI

Install the "gmail-sync" agent skill from https://github.com/Alex8791-cyber/cognithor/tree/main/skills/gmail_sync into .gemini/skills/gmail-sync/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "gmail-sync", 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.

GitHub CLI

$ gh skill install Alex8791-cyber/cognithor gmail-sync

Installs 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).

skills CLI

$ npx skills add Alex8791-cyber/cognithor --skill gmail-sync -a github-copilot

Project install goes to .agents/skills/; add -g for ~/.copilot/skills/.

Manual copy

$ git clone --depth 1 https://github.com/Alex8791-cyber/cognithor.git skills-src && mkdir -p .github/skills && cp -r skills-src/skills/gmail_sync .github/skills/gmail-sync && rm -rf skills-src

Use ~/.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/

Paste into GitHub Copilot

Install the "gmail-sync" agent skill from https://github.com/Alex8791-cyber/cognithor/tree/main/skills/gmail_sync into .github/skills/gmail-sync/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "gmail-sync", 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.

skills CLI

$ npx skills add Alex8791-cyber/cognithor --skill gmail-sync -a opencode

OpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.

GitHub CLI

$ gh skill install Alex8791-cyber/cognithor gmail-sync --agent opencode

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/Alex8791-cyber/cognithor.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/skills/gmail_sync .opencode/skills/gmail-sync && rm -rf skills-src

Use ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.

OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/

Paste into OpenCode

Install the "gmail-sync" agent skill from https://github.com/Alex8791-cyber/cognithor/tree/main/skills/gmail_sync into .opencode/skills/gmail-sync/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "gmail-sync", 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: gmail-sync
GitHub stars: 158
Token cost: ~435 tokens
SKILL.md length: 119 words
Files: 5
Skills in repo: 3
Repo updated: Oct 5, 2026
First seen: Oct 7, 2026
Licence: Apache-2.0

At a glance

API integration skill that fetches Gmail messages, syncs inbox labels, and processes attachments via the Gmail REST API.

Works in 5 steps: Authenticate — obtain or refresh the… → Fetch new messages since the last sync… → Parse each message — extract sender,… → …
Fetching new emails
SKILL.md covers Steps, Example and Error Handling
Runs Python scripts from its folder

What it does

Gmail Sync is an agent skill from Alex8791-cyber/cognithor. API integration skill that fetches Gmail messages, syncs inbox labels, and processes attachments via the Gmail REST API. Use when fetching new emails, syncing inbox state, triaging unread messages, exporting mail data, or integrating Gmail into automated workflows.

Its SKILL.md is about 440 tokens, which your agent loads only when the skill is triggered. The skill folder holds 4 other files (for example `__init__.py`, `manifest.json` and `skill.py`).

It sits in Productivity & Automation, covering Email management. It works with Gmail. The repository describes itself as: Cognithor · Agent OS: Local-first autonomous agent operating system. 19 LLM providers, 18 channels, 145 MCP tools, 6-tier memory, Agent Packs marketplace, zero telemetry. Python… The licence is Apache-2.0.

When your agent uses it

Fetching new emails
Syncing inbox state
Triaging unread messages
Exporting mail data

Example prompts

“/gmail-sync”

Requirements

Python 3

Workflow steps

5 steps, taken from the first numbered list in SKILL.md.

Authenticate — obtain or refresh the OAuth2 token
Fetch new messages since the last sync timestamp
Parse each message — extract sender, subject, body, labels, and attachment metadata
Store locally — persist parsed data under $COGNITHOR_HOME/data/gmail/ as JSON
Return summary — the skill returns {"data": } with message counts

What it can do on your machine

Read from SKILL.md and the folder at commit 78212af. 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
Ships script files (Python), which the agent can run.
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

Gmail Sync loads about 435 tokens when it runs. Until then it costs about 69 tokens; SKILL.md has 119 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it: ~69
When it runs · the whole SKILL.md, loaded when a task matches: ~435

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 Alex8791-cyber/cognithor at commit 78212af, republished under its Apache-2.0 licence (© Alex8791-cyber). 119 words, ~435 tokens.

Download SKILL.mdSave it as .claude/skills/gmail-sync/SKILL.md (or your agent's skills folder). This skill also uses 4 other files; get the full folder from GitHub.

name: gmail-sync
description: API integration skill that fetches Gmail messages, syncs inbox labels, and processes attachments via the Gmail REST API. Use when fetching new emails, syncing inbox state, triaging unread messages, exporting mail data, or integrating Gmail into automated workflows.

Gmail Sync

Fetches Gmail messages, syncs labels, and processes attachments via the Gmail REST API using httpx. Requires network access.

Steps

Authenticate — obtain or refresh the OAuth2 token:
python
```
headers = {"Authorization": f"Bearer {access_token}"}
```

Fetch new messages since the last sync timestamp:

python

async with httpx.AsyncClient() as client:
    resp = await client.get(
        f"{API_BASE}/messages",
        headers=headers,
        params={"q": "after:{last_sync_epoch}"}
    )
    messages = resp.json().get("messages", [])

Parse each message — extract sender, subject, body, labels, and attachment metadata
Store locally — persist parsed data under $COGNITHOR_HOME/data/gmail/ as JSON
Return summary — the skill returns {"data": <parsed_response>} with message counts

Example

User > Synchronisiere meine Gmail-Inbox
Cognithor > 14 neue Nachrichten synchronisiert (3 ungelesen, 2 mit Anhängen)
         Letzte Synchronisation: 2026-04-20 14:00 UTC

Error Handling

401 Unauthorized: Token expired — trigger OAuth refresh flow before retrying
429 Rate Limited: Back off exponentially (1s, 2s, 4s) up to 3 retries
Network timeout: Log the failure, preserve last-known state, report to user
Empty response: Confirm query parameters are correct; check last_sync_epoch is valid

Files

SKILL.md and 4 other files in skills/gmail_sync of Alex8791-cyber/cognithor.

SKILL.md
__init__.py
manifest.json
skill.py
test_skill.py

Open the folder on GitHubat commit 78212af

Compare with similar skills

Gmail Sync 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.

Gmail Sync compared with similar skills
Skill	Stars	Used in	Tokens	Auto-check	Licence	Repo updated
Gmail Sync this skillAlex8791-cyber/cognithor	158	—	~435	Automated safety check: Pass	Apache-2.0	4 days ago
Gmail Emailopen-gitagent/gitagent	713	—	~235	Automated safety check: Notes	MIT	today
Google Workspaceyc-software/qm	15k	—	~1.8k	Automated safety check: Pass	MIT	today
Email Draftingmgonto/executive-assistant-skills	118	—	~2.8k	Automated safety check: Pass	None	7 mo ago
Ak Dev New Messaging Integrationyaalalabs/agent-kernel	192	—	~4.6k	Automated safety check: Pass	Apache-2.0	today
Ak Add Integrationyaalalabs/agent-kernel	192	—	~3.1k	Automated safety check: Pass	Apache-2.0	today

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Gmail Email
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Questions about Gmail Sync

What does Gmail Sync do?

API integration skill that fetches Gmail messages, syncs inbox labels, and processes attachments via the Gmail REST API. Gmail Sync is an agent skill from Alex8791-cyber/cognithor. API integration skill that fetches Gmail messages, syncs inbox labels, and processes attachments via the Gmail REST API.

When should I use Gmail Sync?

Gmail Sync fits situations like: fetching new emails; syncing inbox state; triaging unread messages; exporting mail data.

How do I install Gmail Sync in Claude Code?

Run `npx skills add Alex8791-cyber/cognithor --skill gmail-sync -a claude-code`. Or copy the skill folder (skills/gmail_sync in Alex8791-cyber/cognithor) into .claude/skills/gmail-sync in your project. Claude Code loads it when a task matches its description.

How do I install Gmail Sync in Codex?

Run `npx skills add Alex8791-cyber/cognithor --skill gmail-sync -a codex`. Or copy the skill folder (skills/gmail_sync in Alex8791-cyber/cognithor) into .agents/skills/gmail-sync in your project. Codex loads it when a task matches its description.

Can I use Gmail Sync 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 Alex8791-cyber/cognithor --skill gmail-sync -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/gmail-sync, .gemini/skills/gmail-sync, .github/skills/gmail-sync and .opencode/skills/gmail-sync in your project.

What does Gmail Sync need to run?

Going by SKILL.md and its folder, Gmail Sync needs Python for the scripts in its folder. Our summary lists: Python 3.

Does Gmail Sync 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 Gmail Sync 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 Gmail Sync use?

Gmail Sync is published under the Apache-2.0 licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Gmail Sync use?

About 435 tokens (SKILL.md is roughly 1.7k 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 Gmail Sync?

Skills that share tags, products or a category with Gmail Sync: Gmail Email (open-gitagent/gitagent, 713 stars), Google Workspace (yc-software/qm, 15k stars), Email Drafting (mgonto/executive-assistant-skills, 118 stars) and Ak Dev New Messaging Integration (yaalalabs/agent-kernel, 192 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Gmail Sync?

Alex8791-cyber (a GitHub user) maintains it in Alex8791-cyber/cognithor, which has 158 GitHub stars. The repository holds 3 skills in this directory. The repository was last updated on October 5, 2026.

Source: Alex8791-cyber/cognithor on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.

Gmail Sync

Install Gmail Sync

Facts

At a glance

What it does

When your agent uses it

Example prompts

Requirements

Workflow steps

What it can do on your machine

Tool permissions

Runs code

Network

Credentials

Context cost

Safety

SKILL.md

Gmail Sync

Steps

Example

Error Handling

Files

Compare with similar skills

Similar skills

Gmail Email

Google Workspace

Email Drafting

Ak Dev New Messaging Integration

Ak Add Integration

Career-Ops Gmail Lead Plugin

More from Alex8791-cyber/cognithor

Test Skill

Wetter Abfrage

Questions about Gmail Sync

Install Gmail Sync

Facts

At a glance

What it does

When your agent uses it

Example prompts

Requirements

Workflow steps

What it can do on your machine

Tool permissions

Runs code

Network

Credentials

Context cost

Safety

SKILL.md

Gmail Sync

Steps

Example

Error Handling

Files

Compare with similar skills

Similar skills

More from Alex8791-cyber/cognithor

Related

Questions about Gmail Sync