What is orquestra-signer?

A tool for signing and optionally sending an unsigned Solana transaction, which is a blockchain operation prepared for approval. It requires the agent to show the wallet and transaction details before signing.

It helps sign a base64 transaction, broadcast it to the Solana network, or check the configured signing wallet address.

It keeps signing and submission separate from transaction construction and requires explicit user approval. This helps prevent an unintended transaction from being sent.

orquestra-signer — Skill for Claude Code by berkayoztunc

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Any agent

npx skills add berkayoztunc/orquestra --skill orquestra-signer

Clone the repo

git clone --depth 1 https://github.com/berkayoztunc/orquestra

Made for: Claude Code.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

README.md

[![agentmods](https://agentmods.dev/badge/skills/berkayoztunc/orquestra/orquestra-signer/github.svg)](https://agentmods.dev/skills/berkayoztunc/orquestra/orquestra-signer)

Your own site

<a href="https://agentmods.dev/skills/berkayoztunc/orquestra/orquestra-signer"><img src="https://agentmods.dev/badge/skills/berkayoztunc/orquestra/orquestra-signer/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

Your own site · 80×15

<a href="https://agentmods.dev/skills/berkayoztunc/orquestra/orquestra-signer"><img src="https://agentmods.dev/badge/skills/berkayoztunc/orquestra/orquestra-signer.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 92 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 714 The whole file, excluding the scripts and references it only reads on demand.

Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe. Third-party audits

NVIDIA SkillSpector pass 7 Sept 2026

How audits are shown

Origin original No closer match found in the catalogue.

Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

Model	Per session	Once invoked
Fable 5.1	$0.00092	$0.00714
Opus 5	$0.00046	$0.00357
Sonnet 5	$0.00018	$0.00143
Haiku 4.5	$0.00009	$0.00071

Measured 12d ago against content hash 2492f80e591a, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

orquestra-signer scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 12d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

agents/skills/orquestra-signer/SKILL.md · 80 lines

How it starts

The opening of the file, as written. The whole thing — 80 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Orquestra Signer

Signing and submission skill. Uses ONLY @orquestradev/signer-mcp tools. This skill is the FINAL step in the pipeline — it never builds or researches.

Constraints

ONLY use signer-mcp tools: get_signer_address, sign_transaction, sign_and_send_transaction
NEVER sign without displaying the approval summary first
NEVER sign without receiving an explicit YES from the user
NEVER modify the transaction content
NEVER build or research — this skill receives a ready-made base64 wire tx
ALWAYS pass encoding: "base64" in every signing tool call

Setup Requirements

The signer-mcp server requires these environment variables:

SIGNER_KEYPAIR=<base58-encoded-or-JSON-array-keypair>
SOLANA_RPC_URL=<rpc-endpoint>

Signing Protocol (execute every single time)

Step 1 — Identify signing wallet

Call get_signer_address and display:

Signing Wallet: <pubkey>

Step 2 — Show approval summary (MANDATORY)

═══════════════════════════════════════════
  TRANSACTION APPROVAL REQUIRED
═══════════════════════════════════════════
  Network:        <mainnet-beta / devnet>
  Signer Wallet:  <pubkey>
  Program:        <program name or ID>
  Instruction:    <instruction name>
  Fee Payer:      <pubkey>
  Estimated Fee:  <lamports> (~$X USD)
  Action:         <plain English description>
  Risk Level:     LOW / MEDIUM / HIGH
═══════════════════════════════════════════
  Type YES to sign and send, or NO to cancel.
═══════════════════════════════════════════

Step 3 — Wait for explicit approval

YES → proceed to Step 4
NO / cancel → stop, do not call any signing tool
Ambiguous → ask again, do not assume

Step 4 — Sign (and optionally send)

Sign only: call sign_transaction with encoding: "base64" → return signed base64 wire tx for review
Sign and send: call sign_and_send_transaction with encoding: "base64" → return signature

Both tools must receive encoding: "base64" in the request payload.

Read the full file on GitHub · 80 lines

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

12d ago First seen · 80 lines · 0 tokens per session scan A 2492f80e591a

Subscribe to this mod's changes

orquestra-signer is a skill published in the GitHub repository berkayoztunc/orquestra (23 stars, last pushed 25d ago), licensed MIT. It adds 92 tokens to every session and 714 once invoked, about $0.0005 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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