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fix(wallet-cli): retry sendCommand only on ECONNREFUSED - #9608

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fix(wallet-cli): retry sendCommand only on ECONNREFUSED#9608
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sirtimid/wallet-cli-idempotency-safe-retry

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@sirtimid sirtimid commented Jul 22, 2026

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Explanation

wallet-cli's daemon client sendCommand retried a failed request once on both ECONNREFUSED and ECONNRESET. Only ECONNREFUSED is safe to retry — it means the connection was never established, so the daemon never received the request. ECONNRESET can drop after the daemon received and acted on the request, so a blind resend could execute a non-idempotent action (e.g. broadcast a transaction) twice.

This restricts the retry to ECONNREFUSED; ECONNRESET now surfaces to the caller (where makeDaemonConnectionError already renders a distinct "lost the connection to the daemon" message). Updates the sendCommand and PingUnreachableReason JSDoc accordingly.

Latent today (all current callers are idempotent), but a prerequisite for shipping any send/sign/transfer command.

References

Checklist

  • I've updated the test suite for new or updated code as appropriate
  • I've updated documentation (JSDoc, Markdown, etc.) for new or updated code as appropriate
  • I've communicated my changes to consumers by updating changelogs for packages I've changed
  • I've introduced breaking changes in this PR and have prepared draft pull requests for clients and consumer packages to resolve them

Note

Medium Risk
Changes daemon RPC failure semantics in a wallet CLI path that will back send/sign flows; the tradeoff is correct for safety but callers may see more surfaced connection errors instead of silent retries.

Overview
Narrows daemon JSON-RPC client retry behavior so sendCommand retries once only on ECONNREFUSED, not on ECONNRESET. A reset can happen after the daemon already handled the request, so a blind resend could run a non-idempotent action (e.g. broadcast) twice; those errors now propagate to callers instead.

pingDaemon still classifies ECONNRESET as unreachable with reason refused, but inherits the no-retry rule via sendCommand. JSDoc, changelog, and tests were updated to match.

Reviewed by Cursor Bugbot for commit 1fa26b8. Bugbot is set up for automated code reviews on this repo. Configure here.

sirtimid and others added 3 commits July 22, 2026 18:57
The daemon client's `sendCommand` retried a request once on both
ECONNREFUSED and ECONNRESET. ECONNRESET can drop after the daemon has
already received and acted on the request, so blindly re-sending a
non-idempotent request (e.g. a transaction broadcast) could execute it
twice. Restrict the retry to ECONNREFUSED — where the connection was
never established, so the daemon provably never received the request —
and surface ECONNRESET to the caller instead.

This hardens the retry path before any mutating send/sign/transfer RPC
becomes reachable over the daemon socket.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
@sirtimid
sirtimid marked this pull request as ready for review July 22, 2026 16:19
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sirtimid added this pull request to the merge queue Jul 22, 2026
Merged via the queue into main with commit d6c4e60 Jul 22, 2026
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sirtimid deleted the sirtimid/wallet-cli-idempotency-safe-retry branch July 22, 2026 16:48
pull Bot pushed a commit to dmrazzy/core that referenced this pull request Jul 28, 2026
## Explanation

Adds the user-facing `mm wallet send` command that sends a transaction
end-to-end through the daemon-hosted `TransactionController`, closing
MetaMask#9513. This is the CLI surface on top of the daemon's transaction
capability (MetaMask#9512 / MetaMask#9612): it collects transaction parameters,
dispatches them to the daemon, waits for the broadcast, and reports the
resulting transaction hash.

Send a transaction. `--value` is in ether; select the network with
`--network-client-id` or `--chain-id`; the sender defaults to the
selected account. The command previews the resolved plan and asks for
confirmation before broadcasting, then prints the transaction hash:

Because the daemon auto-approves the confirmation prompt — or your
explicit `--yes` — is the only boundary before funds move; use
`--dry-run` first if unsure. Gas is estimated automatically unless
overridden with `--gas` / `--max-fee-per-gas` /
`--max-priority-fee-per-gas` / `--gas-price` (each a `0x`-prefixed hex
quantity).

### Dedicated `sendTransaction` RPC handler

`TransactionController:addTransaction` returns a `Result` shaped like `{
transactionMeta, result }`, where `result` is a `Promise<hash>` that
resolves once the transaction is signed and broadcast. That promise is
**not JSON-serializable**, so it cannot travel back over the daemon's
generic `call` dispatch. The daemon therefore exposes a dedicated
`sendTransaction` handler (`src/daemon/send-transaction.ts`) that,
server-side:

1. resolves the network client — from `networkClientId`, or from
`chainId` via `NetworkController:findNetworkClientIdByChainId`;
2. resolves the sender — the provided `--from`, or the selected account;
3. calls `addTransaction(txParams, { networkClientId, origin:
'metamask', isInternal: true })` (internal, so it skips
origin/permitted-account validation and is auto-approved by the headless
daemon);
4. **awaits the broadcast** and re-reads the live record so the returned
status reflects the post-broadcast state (`submitted`), not the
`unapproved` creation snapshot;
5. returns a serializable `{ transactionHash, transactionId, status }`.

Params are validated with superstruct at the daemon boundary (exactly
one of `networkClientId` / `chainId`; `0x` address and hex quantities).

### The `mm wallet send` command

A thin client over that handler (`src/commands/wallet/send.ts`):


```sh
➜  wallet-cli: yarn mm wallet send --help
  Send a transaction through the daemon-hosted TransactionController. Estimates gas automatically
  unless overridden, signs, broadcasts, and prints the resulting transaction hash. The daemon
  auto-approves, so the confirmation boundary is this command.

USAGE
  $ mm wallet send --to <value> [--value <value>] [--from <value>] [--data <value>]
    [--network-client-id <value>] [--chain-id <value>] [--gas <value>] [--max-fee-per-gas <value>]
    [--max-priority-fee-per-gas <value>] [--gas-price <value>] [--dry-run] [-y] [-t <value>]

FLAGS
  -t, --timeout=<value>                   Response timeout in milliseconds
  -y, --yes                               Skip the confirmation prompt and broadcast immediately.
      --chain-id=<value>                  Chain ID (0x-prefixed hex) to resolve to a network client.
                                          Provide this or --network-client-id, not both.
      --data=<value>                      Calldata as a 0x-prefixed hex string (for contract calls)
      --dry-run                           Resolve the network client and sender and validate params,
                                          but do not broadcast.
      --from=<value>                      Sender address (0x-prefixed). Defaults to the selected
                                          account.
      --gas=<value>                       Gas limit override, as a 0x-prefixed hex quantity
      --gas-price=<value>                 Legacy gasPrice override, as a 0x-prefixed hex wei quantity
      --max-fee-per-gas=<value>           maxFeePerGas override, as a 0x-prefixed hex wei quantity
      --max-priority-fee-per-gas=<value>  maxPriorityFeePerGas override, as a 0x-prefixed hex wei
                                          quantity
      --network-client-id=<value>         Network client to send on. Provide this or --chain-id, not
                                          both.
      --to=<value>                        (required) Recipient address (0x-prefixed)
      --value=<value>                     [default: 0] Amount to send, in ether (e.g. 0.01). Defaults
                                          to 0.

EXAMPLES
  $ mm wallet send --to 0xRecipient --value 0.01 --chain-id 0x1

  $ mm wallet send --to 0xRecipient --value 0.01 --network-client-id mainnet --yes

  $ mm wallet send --to 0xContract --data 0xabcdef --value 0 --chain-id 0x1 --dry-run
```

## Testing

- Unit tests for the handler (network/sender resolution, internal
submit, dry-run, broadcast + live status, param validation) and the
command (arg parsing, preview/confirm/abort, `--yes`, `--dry-run`, error
surfaces); **100% coverage maintained**.
- **Real-chain e2e** (`tests/wallet-send.e2e.test.ts`): boots a local
`anvil` node, adds it as a custom network, and drives the built `mm` CLI
to sign, broadcast, and mine a real transaction (asserts receipt
`status: 0x1` and a recipient balance increase). It is
**skip-if-absent**; CI installs `anvil` for it only when
`packages/wallet-cli/` changed. See
`packages/wallet-cli/tests/README.md`.
- `build`, package `test`, `test:e2e`, `yarn lint`, `changelog:validate`
pass.

## References

- Closes MetaMask#9513
- Builds on MetaMask#9512 / MetaMask#9611 (daemon transaction-capable) and MetaMask#9509 (the
`TransactionController` slot); the mutating-RPC safety prerequisite
MetaMask#9511 landed in MetaMask#9608.
- `packages/wallet-cli/src/daemon/send-transaction.ts`,
`src/commands/wallet/send.ts`, `tests/wallet-send.e2e.test.ts`.

> [!NOTE]
> Stacked on `sirtimid/wallet-cli-daemon-transaction-capable` (MetaMask#9612);
this PR is based on that branch so the diff is scoped. Once MetaMask#9612
merges, this will be rebased onto `main` and retargeted.

## Checklist

- [x] Tests cover the handler and command (unit) plus a real-chain
broadcast (e2e); 100% coverage maintained.
- [x] `build`, `test`, `test:e2e`, `yarn lint:fix`, `yarn lint`,
`changelog:validate` pass.
- [x] Confirmation prompt (`--yes` to skip) and `--dry-run` gate a real,
irreversible send.

🤖 Generated with [Claude Code](https://claude.com/claude-code)


<!-- CURSOR_SUMMARY -->
---

> [!NOTE]
> **High Risk**
> Adds an irreversible on-chain send path through a headless daemon that
auto-approves transactions; mistakes in confirmation, `--yes`, or
timeout/retry behavior could move real funds despite CLI safeguards.
> 
> **Overview**
> Introduces **`mm wallet send`** so users can broadcast through the
daemon-hosted `TransactionController`, with ether `--value`, network
selection via `--network-client-id` or `--chain-id`, optional gas
overrides, **`--dry-run`**, and an interactive preview (or **`--yes`**
to skip).
> 
> Because `addTransaction`'s broadcast promise cannot cross JSON-RPC,
the daemon gains a dedicated **`sendTransaction`** handler that resolves
network/sender, submits as internal/auto-approved, awaits the hash, and
returns `{ transactionHash, transactionId, status }` (with **`dryRun`**
for preview-only).
> 
> The CLI dry-runs before confirm, then pins the resolved **`from`** /
**`networkClientId`** on broadcast; it validates RPC results, uses a
longer default broadcast timeout with duplicate-send warnings on
timeout, and documents that the daemon still auto-approves—so the
command prompt is the main fund-moving gate.
> 
> **CI/testing:** wallet-cli e2e installs **anvil** via
`@metamask/foundryup`, sets **`MM_E2E_REQUIRE_ANVIL`**, adds a
real-chain send e2e (anvil + custom network), shares daemon cleanup
helpers, and updates knip/README/changelog accordingly.
> 
> <sup>Reviewed by [Cursor Bugbot](https://cursor.com/bugbot) for commit
0f0e34f. Bugbot is set up for automated
code reviews on this repo. Configure
[here](https://www.cursor.com/dashboard/bugbot).</sup>
<!-- /CURSOR_SUMMARY -->

---------

Co-authored-by: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Co-authored-by: Erik Marks <25517051+rekmarks@users.noreply.github.com>
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wallet-cli: make sendCommand retry idempotency-safe before mutating RPC ships

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