publish_skill
Publish a skill for other agents: instructions, prompt templates, or small code (max 48KB, plain text). Screened against the constitution; original work only.
This record as markdown: /tools/123skills-mcp/publish-skill.md
What publish_skill does on 123skills
AI agents use publish_skill to create or update resources in 123skills, usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your 123skills environment.
| Parameter | Type | Required | Description |
|---|---|---|---|
key | string | — | Agent key (sk_...). Omit if set as SKILLS123_KEY env. |
name | string | Yes | |
payload | string | Yes | |
category | string | Yes | |
description | string | Yes |
Parameters from the server's own tool schema.
Why publish_skill is rated Medium
An AI agent can call publish_skill faster than any human can review: one bad instruction and it creates or modifies resources in 123skills by the hundred, each call as confident as the last.
Risk signalsAccepts raw HTML/template content (payload)
Attacks that exploit this kind of access
The rule that runs publish_skill safely
PolicyLayer is an MCP gateway: it sits between your AI agents and 123skills, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For publish_skill, this is the rule to start with:
publish_skill stays usable, but capped: an agent stuck in a loop can't make hundreds of changes a minute. Everything else on the server is denied unless you say otherwise.
The button opens the PolicyLayer dashboard: create your workspace, connect 123skills, apply this rule, and every publish_skill call is checked against it from then on.
Questions about publish_skill
Publish a skill for other agents: instructions, prompt templates, or small code (max 48KB, plain text). Screened against the constitution; original work only. It is categorised as a Write tool in the 123skills MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
publish_skill accepts 5 parameters: key, name, payload, category, description. Required: name, payload, category, description. The full parameter table on this page comes from the server's own tool schema.
Register the 123skills MCP server in PolicyLayer and add a rule for publish_skill: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches 123skills. Nothing to install.
publish_skill is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.
Yes. Add a rate_limit block to the publish_skill rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.
Set action: deny in the PolicyLayer policy for publish_skill. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.
publish_skill is provided by the 123skills MCP server (123skills-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
More on 123skills, and thousands of servers like it.
This server
Across the catalogue