Feat: add klima plugin skill

[psparacino]

Description

This PR adds the klima plugin, a skill that enables the retirement of tokenized carbon credits on Base through the Klima Protocol Retirement Aggregator.

AI agents deployed by both individuals and companies can facilitate instant carbon compensation to cover operational emissions from both onchain and offchain activity.

Furthermore, AI agents and onchain activity have a real energy footprint, and Base is where a growing share of that activity now settles. With the addition of this skill, agents transacting on Base can now compensate for that footprint in the same place that they operate, without requiring additional infrastructure or accounts.

Type of change

• Base MCP plugin submission
• Update to an existing skill/plugin
• New skill
• Documentation
• Other (please describe):

Affected skill(s)

base-mcp

Plugin checklist

• Plugin spec/manifest is accurate and tested
• (If Applicable) API endpoints and/or external MCP/CLI tested and functional
• Follows Contribution Scope

Base MCP Plugin Submission Agreement (when applicable)

By checking the box below, I agree and represent on behalf of the protocol/entity it references that:

• I am authorized to submit this plugin on behalf of the protocol/entity it references;

• the plugin does not infringe or misappropriate any third party's rights;

• the plugin and the underlying protocol comply with all applicable laws, and my API enforces the same geofencing and eligibility restrictions as my own user-facing app;

• the plugin is in full compliance with our protocol's/entity's then-current terms and conditions, and if not, submission and use thereafter is considered a formal written exemption to such terms and conditions;

• the plugin accurately describes its behavior and contains no hidden, deceptive, or malicious instructions, and my API will not return malicious or unexpected calldata;

• the protocol/entity is solely responsible for the plugin and is submitting a plugin is subject to the Base Account and Base App Terms of Service as using a "Service"; and

• Base may modify, decline to list, or remove the plugin at any time, for any reason.

• I have read and agree to the Base MCP Plugin Submission Agreement above.

[cb-heimdall]

🟡 Heimdall Review Status

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