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common-anchor-errors-debugger

Diagnose and fix common Anchor runtime errors in Solana tests and transactions.

3|Updated Jan 22, 2026
Search Tags:#debugging#logs#pda#anchor#solana#cpi#idl
One-click install
npx skills add https://github.com/SanctifiedOps/solana-skills --skill common-anchor-errors-debugger
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: common-anchor-errors-debugger
Source: https://github.com/SanctifiedOps/solana-skills/tree/main/skills/core-dev/common-anchor-errors-debugger
Command: npx skills add https://github.com/SanctifiedOps/solana-skills --skill common-anchor-errors-debugger

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

This Skill helps developers quickly identify and fix common Anchor runtime errors that occur during tests or on-chain transactions, such as discriminator mismatches, constraint failures, and CPI issues.

Core Features & Use Cases

  • Guided debugging workflow: Step-by-step prompts to diagnose error codes, logs, and failing accounts.
  • Constraint and discriminator checks: Re-derive PDAs, verify ownership, and reconcile account data with IDL.
  • Use Case: When a test fails with an Anchor error, run the debugger to surface the root cause, correct constraints, redeploy, and retest.

Quick Start

Provide the failing transaction details and logs to the debugger; it will guide you through reproducing the issue, applying fixes, and validating on a local validator.

Frequently Asked Questions about common-anchor-errors-debugger

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I debug Anchor runtime errors like discriminator mismatches and constraint failures?▼

To debug Anchor runtime errors, provide failing transaction details and logs to a guided workflow that re-derives PDAs, verifies account ownership, and reconciles on-chain state with the IDL to surface root causes.

Why does my Solana Anchor test fail with account deserialization errors?▼

Account deserialization errors in Solana Anchor tests often stem from discriminator mismatches or incorrect account ownership. You must verify account ownership and align your IDL with the actual on-chain state to resolve these failures.

What is the best way to diagnose CPI issues in Solana programs built with Anchor?▼

Diagnosing CPI issues in Solana Anchor programs requires using targeted logs to reproduce the exact failure. Analyze the error codes and failing accounts to identify mismatches in constraints or program invocations before redeploying.

How do I fix Anchor constraint failures during on-chain transactions?▼

Fixing Anchor constraint failures involves re-deriving PDAs to ensure they match on-chain state, correcting the constraints in your code, redeploying the updated program, and running tests on a local validator to verify the fix.

Do I need a local validator to reproduce and verify Anchor error fixes?▼

Yes, using a local validator is required to reproduce the issue, apply fixes, and validate that the corrected Anchor program handles account deserialization and constraints properly before redeploying to mainnet.

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