eng-3151-add-coinbase-connector by Ishita-02 · Pull Request #22 · stakekit/agentkit

Ishita-02 · 2026-07-09T15:13:24Z

Note

Medium Risk
Changes are docs and agent instructions for transaction signing and fund safety, not runtime code, but errors in batching or unsignedTransaction handling could mislead agents handling real wallets.

Overview
Adds yield-xyz-agentkit-coinbase, a sixth marketplace plugin that runs the full yield flow without the base plugin: Yield.xyz via the Coinbase partner MCP (https://mcp.yield.xyz/p/coinbase/mcp) plus Base MCP for session, send_calls / sign, and hash reporting.

The new skill documents orchestration end-to-end—wallet from get_wallets, chain checks against supportedChains, preferred atomic batch of unsignedTransactions with individual fallback, mandatory submit_hash, and RWA gating—with shared reference content linked from the core skill. Top-level README / plugins README / marketplace.json are updated to list the connector and note it is self-contained (unlike Privy/MoonPay/Robinhood).

Small shared reference edits: clearer Rule 5 for sequential signing when not batching, RWA docs warn that Base Accounts (smart wallets) may fail issuer allowlists, and a few pointers now say “read MCP tool schema” instead of SKILL.md.

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Risk: medium. Cursor Bugbot reported 3 unresolved findings (including a high-severity missing RWA gate); Cursor Security Agent passed with no findings. Not approving; assigned reviewers for human review.

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Risk: medium. Cursor Security Agent completed with no findings; Cursor Bugbot was not present on the latest commit. Risk exceeds the low auto-approval threshold, so not approving; reviewers are already assigned for human review.

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✅ Bugbot reviewed your changes and found no new issues!

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ajag408 · 2026-07-09T17:38:30Z

@Ishita-02 Also one more comment here on reworking the base plugin skills so we don't have to copy them here and deal with drift later on: https://yieldxyz.slack.com/archives/C0A9REH4WNQ/p1783618537195029?thread_ts=1783613994.087279&cid=C0A9REH4WNQ

cursor

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Risk: medium. Cursor Security Agent completed with no findings; Cursor Bugbot was not present on the latest commit. Risk exceeds the low auto-approval threshold, so not approving; Philippoes is already assigned for human review.

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Risk: medium. Cursor Security Agent completed with no findings; Cursor Bugbot was not present on the latest commit. Risk exceeds the low auto-approval threshold, so not approving; Philippoes is already assigned for human review.

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✅ Bugbot reviewed your changes and found no new issues!

Comment @cursor review or bugbot run to trigger another review on this PR

^{Reviewed by Cursor Bugbot for commit 6e34032. Configure here.}

…entry Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

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Risk: medium. Cursor Security Agent completed with no findings; Cursor Bugbot was not present on the latest commit. Risk exceeds the low auto-approval threshold, so not approving; Philippoes and ajag408 are already assigned for human review.

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ajag408

Thanks for addressing all the feedback. Non-blocking comments

ajag408 · 2026-07-13T17:38:53Z

+  "license": "MIT",
+  "keywords": ["defi", "yield", "base", "coinbase", "connector", "wallet", "signing", "web3"],
+  "skills": "./skills",
+  "mcpServers": "./.mcp.json",


Since the reference files are now symlinks, three install paths depend on dereferencing working: Claude marketplace install (documented, but there's an open issue — anthropics/claude-code#57339 — reporting dangling symlinks in the cache for exactly this cross-plugin case), the Codex plugin path added here, and standalone npx skills add. Could we do one real install from this branch on each path and confirm the five files land as content, not broken links?

ajag408 · 2026-07-13T17:40:10Z

+yield-xyz-agentkit-coinbase/
+├── SKILL.md                  # discover via Yield.xyz MCP, sign/broadcast via Base Account
+├── README.md                 # This file
+└── references/               # → symlinks into ../../yield-xyz-agentkit/skills/yield-xyz-agentkit/references/


Tiny accuracy nit: the actual symlinks resolve from inside references/, so they use ../../../../yield-xyz-agentkit/… — the ../../ shown here would be a broken link if someone copied it when adding a new reference. Suggest either showing the real four-level path or dropping the path and keeping just "symlinks into the core skill's references/".

Ishita-02 added 2 commits July 7, 2026 18:52

feat: add coinbase connector

2307889

feat: coinbase connector

7672f3b

Ishita-02 changed the title ~~Eng 3151 base plugin~~ eng-3151-add-coinbase-connector Jul 9, 2026

cursor Bot reviewed Jul 9, 2026

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cursor Bot requested review from Philippoes and sandy-yield July 9, 2026 15:22

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fix: address cursorbot comments

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Comment thread plugins/yield-xyz-agentkit-coinbase/skills/yield-xyz-agentkit-coinbase/SKILL.md Outdated

fix: address cursorbot comments

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Ishita-02 requested review from ajag408 and removed request for sandy-yield July 9, 2026 16:15

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Comment thread plugins/README.md Outdated

Comment thread plugins/yield-xyz-agentkit-coinbase/.mcp.json

Comment thread .claude-plugin/marketplace.json Outdated

Comment thread plugins/yield-xyz-agentkit-coinbase/skills/yield-xyz-agentkit-coinbase/references/policies.md Outdated

fix: address comments

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fix: address comments

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Ishita-02 requested a review from ajag408 July 10, 2026 06:57

fix: add coinbase .codex-plugin manifest and README comparison-table …

af0df93

…entry Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

cursor Bot reviewed Jul 13, 2026

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ajag408 approved these changes Jul 13, 2026

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Ishita-02 commented Jul 9, 2026 •

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