Ops Inbox
davepoon/buildwithclaude
Full inbox management across all channels — WhatsApp (wacli), Email (Gmail MCP), Slack (MCP), Telegram (user-auth MCP), Discord (webhook + REST read), Notion (MCP — comments, mentions, assigned…
Caspian Inbox (caspian:Inbox) — list agent email and other configured channel conversations/messages.
Install Caspian Inbox
$ npx skills add TryCaspian/caspian-sdk --skill caspian-inbox -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install TryCaspian/caspian-sdk caspian-inbox --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/TryCaspian/caspian-sdk.git skills-src && mkdir -p .claude/skills && cp -r skills-src/packages/opencode/src/skills/caspian-inbox .claude/skills/caspian-inbox && 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 "caspian-inbox" agent skill from https://github.com/TryCaspian/caspian-sdk/tree/main/packages/opencode/src/skills/caspian-inbox into .claude/skills/caspian-inbox/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "caspian-inbox", 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/TryCaspian/caspian-sdk/tree/main/packages/opencode/src/skills/caspian-inboxType 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 TryCaspian/caspian-sdk --skill caspian-inbox -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install TryCaspian/caspian-sdk caspian-inbox --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/TryCaspian/caspian-sdk.git skills-src && mkdir -p .agents/skills && cp -r skills-src/packages/opencode/src/skills/caspian-inbox .agents/skills/caspian-inbox && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "caspian-inbox" agent skill from https://github.com/TryCaspian/caspian-sdk/tree/main/packages/opencode/src/skills/caspian-inbox into .agents/skills/caspian-inbox/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "caspian-inbox", 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 TryCaspian/caspian-sdk --skill caspian-inbox -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install TryCaspian/caspian-sdk caspian-inbox --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/TryCaspian/caspian-sdk.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/packages/opencode/src/skills/caspian-inbox .cursor/skills/caspian-inbox && 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 "caspian-inbox" agent skill from https://github.com/TryCaspian/caspian-sdk/tree/main/packages/opencode/src/skills/caspian-inbox into .cursor/skills/caspian-inbox/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "caspian-inbox", 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/TryCaspian/caspian-sdk.git --path packages/opencode/src/skills/caspian-inbox--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 TryCaspian/caspian-sdk --skill caspian-inbox -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install TryCaspian/caspian-sdk caspian-inbox --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/TryCaspian/caspian-sdk.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/packages/opencode/src/skills/caspian-inbox .gemini/skills/caspian-inbox && 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 "caspian-inbox" agent skill from https://github.com/TryCaspian/caspian-sdk/tree/main/packages/opencode/src/skills/caspian-inbox into .gemini/skills/caspian-inbox/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "caspian-inbox", 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 TryCaspian/caspian-sdk caspian-inboxInstalls 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 TryCaspian/caspian-sdk --skill caspian-inbox -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/TryCaspian/caspian-sdk.git skills-src && mkdir -p .github/skills && cp -r skills-src/packages/opencode/src/skills/caspian-inbox .github/skills/caspian-inbox && 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 "caspian-inbox" agent skill from https://github.com/TryCaspian/caspian-sdk/tree/main/packages/opencode/src/skills/caspian-inbox into .github/skills/caspian-inbox/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "caspian-inbox", 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 TryCaspian/caspian-sdk --skill caspian-inbox -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install TryCaspian/caspian-sdk caspian-inbox --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/TryCaspian/caspian-sdk.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/packages/opencode/src/skills/caspian-inbox .opencode/skills/caspian-inbox && 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 "caspian-inbox" agent skill from https://github.com/TryCaspian/caspian-sdk/tree/main/packages/opencode/src/skills/caspian-inbox into .opencode/skills/caspian-inbox/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "caspian-inbox", 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
caspian-inbox- GitHub stars
- 973
- Token cost
- ~347 tokens
- SKILL.md length
- 135 words
- Files
- 1
- Skills in repo
- 8
- Repo updated
- First seen
- Licence
- Apache-2.0
At a glance
Caspian Inbox (caspian:Inbox) — list agent email and other configured channel conversations/messages.
- Works in 4 steps: Call the tool caspian_inbox with list… → Optionally pass → Present the tool output to the user… → …
- The user asks for inbox
- SKILL.md covers When to use, How, Address only and Related
- Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
What it does
Caspian Inbox is an agent skill from TryCaspian/caspian-sdk. Caspian Inbox (caspian:Inbox) — list agent email and other configured channel conversations/messages. Use when the user asks for inbox, mail, unread email, Slack/Discord/channel messages via Caspian, or runs /caspian:inbox.
Its SKILL.md is about 350 tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts. Compatibility notes: opencode
It sits in Productivity & Automation, covering Email management. It works with Discord and Slack. The repository describes itself as: Agent communication SDK. The open-source agent communication layer for AI agents — email, WhatsApp, Slack, Discord, Telegram, SMS. Python & TypeScript. The licence is Apache-2.0.
When your agent uses it
- The user asks for inbox
- Slack/Discord/channel messages via Caspian
- Runs /caspian:inbox
Example prompts
- “/caspian-inbox”
Requirements
- Compatibility (from SKILL.md): opencode
Workflow steps
4 steps, taken from the first numbered list in SKILL.md.
- Call the tool caspian_inbox with list true (default).
- Optionally pass
- Present the tool output to the user (connections + conversations + recent messages).
- Do not invent messages. If the tool errors, report the error.
What it can do on your machine
Read from SKILL.md and the folder at commit 718a96d. 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.
Compatibility
opencode
From compatibility in the SKILL.md frontmatter.
Context cost
Caspian Inbox loads about 347 tokens when it runs. Until then it costs about 59 tokens; SKILL.md has 135 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 TryCaspian/caspian-sdk at commit 718a96d, republished under its Apache-2.0 licence (© TryCaspian). 135 words, ~347 tokens.
Download SKILL.mdSave it as
.claude/skills/caspian-inbox/SKILL.md (or your agent's skills folder).- name
- caspian-inbox
- description
- Caspian Inbox (caspian:Inbox) — list agent email and other configured channel conversations/messages. Use when the user asks for inbox, mail, unread email, Slack/Discord/channel messages via Caspian, or runs /caspian:inbox.
- compatibility
- opencode
- license
- Apache-2.0
- metadata.alias
- caspian:Inbox
- metadata.channel
- caspian
Caspian Inbox (caspian:Inbox)
List recent Caspian conversations and messages across configured channels (default: email; also any other channels enabled in plugin config).
When to use
- User asks “what’s in my inbox?”, “show emails”, “list Caspian messages”
- User runs
/caspian:inboxor/caspian-inbox - User mentions unread mail or channel threads on the agent inbox
How
- Call the tool
caspian_inboxwithlisttrue (default). - Optionally pass:
channels— e.g.emailoremail,slackconversationLimit— default 10messageLimit— default 5
- Present the tool output to the user (connections + conversations + recent messages).
- Do not invent messages. If the tool errors, report the error.
Address only
If the user only wants the agent email address, call caspian_inbox with
list: false.
Related
- Send mail: tool
caspian_send_emailor/caspian:email - Inbound mail is also pushed into OpenCode sessions automatically by the plugin
© TryCaspian, Apache-2.0. 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 packages/opencode/src/skills/caspian-inbox of TryCaspian/caspian-sdk.
Open the folder on GitHubat commit 718a96d
Compare with similar skills
Caspian Inbox 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 |
|---|---|---|---|---|---|---|
| Caspian Inbox this skillTryCaspian/caspian-sdk | 973 | — | ~347 | Automated safety check: Pass | Apache-2.0 | |
| Ops Inboxdavepoon/buildwithclaude | 3.6k | — | ~7.2k | Automated safety check: Notes | MIT | |
| Openloomi Connectorsmelandlabs/openloomi | 1k | — | ~3.3k | Automated safety check: Pass | Apache-2.0 | |
| Traul Message Searchdandaka/traul | 112 | — | ~3.9k | Automated safety check: Notes | AGPL-3.0 | |
| Connect Apps with ComposioComposioHQ/awesome-claude-skills | 77k | 3 repos | ~557 | Automated safety check: Pass | None | |
| Composio Cloud Toolsquarqlabs/argus | 279 | — | ~543 | Automated safety check: Pass | Apache-2.0 |
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Traul Message Search
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Connect Apps with Composio
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Connects an agent to 1000+ external apps through the Composio Tool Router plugin, so it can actually send emails, create issues and post messages instead of only drafting them.
Composio Cloud Tools
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Routes requests to external SaaS apps such as GitHub, Gmail, Google Calendar, Slack, Notion and Linear through cloud tools, with safeguards on irreversible actions.
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Connect Caspian Discord for OpenCode (install OAuth or BYO bot token), enable discord in caspian.json channels, and tell the user to restart.
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Related
Categories
Questions about Caspian Inbox
What does Caspian Inbox do?
Caspian Inbox (caspian:Inbox) — list agent email and other configured channel conversations/messages. Caspian Inbox is an agent skill from TryCaspian/caspian-sdk. Caspian Inbox (caspian:Inbox) — list agent email and other configured channel conversations/messages.
When should I use Caspian Inbox?
Caspian Inbox fits situations like: the user asks for inbox; slack/Discord/channel messages via Caspian; runs /caspian:inbox.
How do I install Caspian Inbox in Claude Code?
Run `npx skills add TryCaspian/caspian-sdk --skill caspian-inbox -a claude-code`. Or copy the skill folder (packages/opencode/src/skills/caspian-inbox in TryCaspian/caspian-sdk) into .claude/skills/caspian-inbox in your project. Claude Code loads it when a task matches its description.
How do I install Caspian Inbox in Codex?
Run `npx skills add TryCaspian/caspian-sdk --skill caspian-inbox -a codex`. Or copy the skill folder (packages/opencode/src/skills/caspian-inbox in TryCaspian/caspian-sdk) into .agents/skills/caspian-inbox in your project. Codex loads it when a task matches its description.
Can I use Caspian Inbox 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 TryCaspian/caspian-sdk --skill caspian-inbox -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/caspian-inbox, .gemini/skills/caspian-inbox, .github/skills/caspian-inbox and .opencode/skills/caspian-inbox in your project.
What does Caspian Inbox need to run?
SKILL.md names no scripts, command-line tools or credentials: Caspian Inbox is instructions for the agent only. Compatibility (from SKILL.md): opencode.
Does Caspian Inbox 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 Caspian Inbox 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 Caspian Inbox use?
Caspian Inbox is published under the Apache-2.0 licence (declared in SKILL.md). It allows redistribution, so the full SKILL.md is shown on this page.
How many tokens does Caspian Inbox use?
About 347 tokens (SKILL.md is roughly 1.4k 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 Caspian Inbox?
Skills that share tags, products or a category with Caspian Inbox: Ops Inbox (davepoon/buildwithclaude, 3.6k stars), Openloomi Connectors (melandlabs/openloomi, 1k stars), Traul Message Search (dandaka/traul, 112 stars) and Connect Apps with Composio (ComposioHQ/awesome-claude-skills, 77k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Caspian Inbox?
TryCaspian (a GitHub organization) maintains it in TryCaspian/caspian-sdk, which has 973 GitHub stars. The repository holds 8 skills in this directory. The repository was last updated on August 25, 2026.
Source: TryCaspian/caspian-sdk on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.