> ## Documentation Index
> Fetch the complete documentation index at: https://aomi.dev/docs/llms.txt
> Use this file to discover all available pages before exploring further.
# Solana bundle
> Learn how Aomi turns Solana instructions or venue-supplied bytes into an atomic transaction with verified signing and submission.
A Solana transaction can run several program instructions in a fixed order and
commit them atomically. Aomi calls that instruction set a Solana bundle. It
compiles the bundle into one legacy or v0 `VersionedTransaction`, simulates the
complete transaction, then routes signing and submission according to the
wallet's policy.
On this page, **bundle** means the instructions inside one Solana transaction.
It does not mean a Jito bundle of several independent transactions. Every
instruction in an Aomi Solana bundle succeeds together or the transaction
fails without committing any of them.
## Bundle anatomy
A bundle combines the user's connected wallet with one cluster and an ordered
instruction list. The transaction format determines whether address lookup
tables can be used. Compute-budget settings and a recent blockhash complete the
transaction before it reaches a signer.
```mermaid theme={null}
flowchart LR
I["Instruction path
ordered program calls"] --> T["One VersionedTransaction"]
V["Venue path
authoritative transaction bytes"] --> T
P["Connected payer
and Solana cluster"] --> T
A["Format and lookup tables
compute budget and blockhash"] --> T
T --> S["Simulate the complete transaction"]
S --> G["Check wallet policy"]
G --> R["Use the configured submitter"]
R --> C["Solana cluster"]
```
| Component | Purpose |
| ------------------ | ---------------------------------------------------------------------------------------- |
| Payer | The connected Solana wallet that authorizes the transaction and pays the network fee. |
| Instructions | Ordered calls to programs such as System Program, SPL Token, or a protocol program. |
| Transaction format | Legacy for simple account lists or v0 when address lookup tables are required. |
| Compute budget | Optional compute-unit limit and priority fee for heavier or time-sensitive transactions. |
| Recent blockhash | A freshness boundary that prevents an old transaction from remaining valid indefinitely. |
The payer and cluster must remain consistent across every staged instruction.
Aomi also preserves the original instruction order through assembly,
simulation, and signing. It rejects a mixed payer or mixed cluster before
producing transaction bytes.
## Two build paths
Aomi supports an instruction path and a venue-transaction path. Both produce a
single `VersionedTransaction`, but they differ in who supplies the transaction
structure. Choose the path that matches the output of your App's build tool.
| Path | Start with | Aomi does | Best fit |
| ---------------- | --------------------------------- | -------------------------------------------------------------------------------------------------------------- | ---------------------------------------------------------------- |
| Instruction path | Individual program instructions | Validates each instruction, assembles the bundle, adds optional compute settings, and compiles the transaction | Transfers, token operations, and APIs that return instructions |
| Venue path | A complete serialized transaction | Decodes and validates the supplied bytes while preserving the venue's transaction structure | Jupiter, Raydium, and other APIs that return a ready transaction |
The instruction path uses `svm_stage_ix`, `svm_simulate_ix`, and
`svm_commit_ix`. Staging gives each instruction a stable id. Simulation and
commit resolve the same ids in the same order before compiling one transaction.
The venue path uses `svm_stage_tx`, `svm_simulate_tx`, and `svm_commit_tx`.
Aomi treats the staged `VersionedTransaction` as authoritative. It does not
reconstruct the message from a simplified description or silently change the
venue's lookup tables and compute-budget instructions.
## Execution lifecycle
The App stages either instructions or transaction bytes, then asks Aomi to
simulate the complete transaction. At commit time, Aomi checks the wallet's
current signing policy and the App's configured submission route. The selected
signer authorizes the exact transaction bytes prepared for that route.
```mermaid theme={null}
sequenceDiagram
autonumber
actor User
participant App
participant Aomi
participant Simulator as LiteSVM or cluster simulator
participant Signer as Authorized wallet signer
participant Venue
participant Solana
User->>App: Start a Solana action
App->>Aomi: Stage instructions or transaction bytes
Aomi->>Simulator: Simulate one VersionedTransaction
Simulator-->>Aomi: Return result, logs, and compute use
Aomi->>Aomi: Check wallet policy and submission route
alt Wallet submits
Aomi->>Signer: Request sign and send
Signer->>Solana: Submit the signed transaction
Solana-->>Signer: Return the transaction signature
Signer-->>Aomi: Report completion
else Venue submits
Aomi->>Signer: Request a transaction signature
Signer-->>Aomi: Return signed transaction bytes
Aomi->>Venue: Deliver the signed transaction
Venue->>Solana: Submit
Venue-->>Aomi: Report completion
else Aomi submits under delegated signing
Aomi->>Signer: Request a signature under the active grant
Signer-->>Aomi: Return signed transaction bytes
Aomi->>Solana: Submit
loop Until the target commitment
Aomi->>Solana: Check signature status
Solana-->>Aomi: Return status
end
end
Aomi-->>App: Return confirmed or failed
App-->>User: Show the final status
```
The wallet route combines the signer and submitter in one wallet operation.
The venue route separates them so an App can pass signed bytes to a protocol's
submission endpoint. The Aomi route requires delegated signing because the
runtime cannot submit for a wallet that still requires an interactive prompt.
## Instruction bundles
The instruction path works well when your App can identify each program call.
You can stage raw instruction data or use supported semantic encoders. Aomi
records the program id, account metadata, instruction data, payer, and cluster
before assigning ids to the staged instructions.
At simulation or commit time, you select legacy or v0 format and provide any
address lookup tables. You can also set a compute-unit limit and priority price.
If the instruction list already contains matching compute-budget instructions,
Aomi preserves them instead of adding duplicates.
## Venue-built transactions
Some protocol APIs return a complete serialized transaction rather than an
instruction list. Aomi decodes that transaction and verifies that its fee payer
matches the connected wallet. It preserves the message version, lookup tables,
instruction order, and any compute-budget settings supplied by the venue.
Venue-built transactions can keep their original blockhash when the protocol
requires byte-stable signing and submission. A wallet-handoff flow may instead
allow a refresh before approval. A pre-signed transaction must keep its original
message because changing the blockhash would invalidate its signature.
## Simulation
Aomi simulates the assembled transaction without submitting it to the cluster.
The normal path uses LiteSVM with current program and account data. When a
program loader is not supported locally, Aomi can use the configured cluster
simulator. A program failure remains a failure and does not trigger a different
simulator to search for a passing result.
The result reports success or failure along with program logs and compute use.
It can also return selected account state when the App requests it. These
details help the App explain a failure and choose an appropriate compute budget
before asking for a signature.
Solana simulation is currently an explicit App step rather than a mandatory
commit gate. Your App should call the matching simulation tool and stop when
the result contains an error. A commit can otherwise reach signing without a
stored passing simulation.
## Signing authority
The connected wallet must be linked to the current Aomi account before a hosted
commit can proceed. Aomi checks the wallet's policy at commit time. A read-only
thread, a locked wallet, an unbound address, or an address owned by another
account produces no signature.
Manual and client-held signing routes can surface additional signer addresses
required by the transaction. The wallet client must collect those signatures
alongside the payer signature. Delegated automatic signing currently supports
only the common single-signer transaction because the provider grant controls
the payer key alone.
## Submission routes
The App declares which submission routes it permits and provides a default.
The model forwards that decision when it stages or assembles the transaction.
Aomi then reconciles the route with the wallet's signing policy instead of
letting the model choose a more permissive path.
| Route | Signing behavior | Submission behavior |
| -------- | ---------------------------------------------------------- | --------------------------------------------------------------- |
| `wallet` | The connected wallet or key-holding client signs | The same client sends the transaction to Solana |
| `venue` | A wallet or delegated provider signs | The signed bytes return to the App so the venue can submit them |
| `aomi` | A supported provider signs under an active delegated grant | Aomi submits and monitors the transaction |
An automatic signer has no interactive wallet available, so a `wallet` route
uses Aomi submission instead. A manual wallet cannot use the `aomi` route
today. It must submit through the wallet or return signed bytes to the venue.
## Blockhash and confirmation
An instruction bundle receives a fresh blockhash when it is committed. A
venue-built transaction follows the preservation rule recorded when it was
staged. This keeps byte-sensitive protocol flows intact while allowing a
refreshable transaction to use a longer validity window.
For Aomi submission, the runtime sends the signed bytes and monitors the
transaction signature. The default target is `confirmed`, while an App can
request `processed` or `finalized`. Aomi resubmits the same bytes while the
blockhash remains valid because Solana identifies those attempts by the same
signature.
If a refreshable transaction expires, Aomi rechecks the delegated grant before
attaching a new blockhash and requesting a new signature. A transaction whose
bytes must be preserved cannot be rewritten after expiry. It ends with an
expired status so the App can rebuild it from the original intent.
## Guards
The instruction path exposes each program id and instruction discriminator to
the App's guard policy. This allows a guarded App to restrict writes to an
approved cluster and a known set of program operations. Anything the guard
cannot decode fails closed before signing.
An opaque venue transaction cannot be inspected with the same instruction-level
policy guarantees. A guarded App should use the instruction path when it needs
program and discriminator allowlists. This gives up the convenience of a
ready-made transaction in exchange for an auditable instruction bundle.
## Current boundaries
A Solana bundle is atomic only inside one transaction. If an action requires
several transactions, Aomi processes them separately and Solana confirms each
one independently. A later failure cannot roll back a transaction that already
confirmed.
The connected wallet remains the fee payer, so this path does not currently
provide separate Solana gas sponsorship. Delegated signing supports one required
signature. A transaction that needs additional signers requires an interactive
or key-holding client that can collect them. Interactive wallets must also submit
through the wallet or venue route rather than handing signed bytes to Aomi for
broadcast.
## Related concepts
Place Solana assembly inside the wider build, simulate, sign, and broadcast lifecycle.
Review clusters, wallet request kinds, program guards, and network limits.
Understand wallet binding, signing policy, and delegated grants.
See how Aomi checks authority and fails closed before signing.
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