jiminy-core

The foundation. Account layout, zero-copy IO, validation, PDA utilities, sysvar access, lifecycle helpers, math, time checks. Everything your pinocchio program needs before it touches a token.

#![no_std] · no_alloc · BPF-safe · Built on pinocchio

Part of the jiminy toolkit.

Install

[dependencies]

jiminy-core = "0.11"

What's inside

Module	What it does
`account`	8-byte header, `AccountReader`, `AccountWriter`, `SliceCursor`, lifecycle (close/realloc), pod, list, bitflags
`check`	Owner / signer / key assertions, PDA derivation & verification
`instruction`	Transaction introspection via the Instructions sysvar
`math`	Checked arithmetic, BPS helpers, scaling with u128 intermediates
`sysvar`	Clock & Rent sysvar readers
`state`	State-machine transition validation
`time`	Deadline, cooldown, slot-staleness checks
`event`	Zero-alloc event emission via `sol_log_data`
`programs`	Well-known program IDs (feature-gated)

Quick start

use jiminy_core::prelude::*;

// Read a validated account
let reader = AccountReader::new_checked(data, EXPECTED_DISC, EXPECTED_VER)?;
let owner = reader.pubkey_at(0)?;
let amount = reader.u64_at(32)?;

Features

Feature	Default	Description
`programs`	yes	Exposes well-known Solana program addresses
`log`	no	Structured `sol_log` wrappers

About

Built by MoonManQuark / Bluefoot Labs.

If jiminy saved you some CU, donations welcome at solanadevdao.sol (F42ZovBoRJZU4av5MiESVwJWnEx8ZQVFkc1RM29zMxNT).

License

Apache-2.0