Stellar Agent v0.5.0

0.5.0

• Added a guarded Mainnet agent-wallet workflow for dedicated, risk-budgeted wallets, including external-funding guidance, arming fingerprints, receipt-backed spend caps, balance checks, and an explicit autosign exception that still requires policy status allowed.
• Added example apps for a local x402 paid API, an agent service market, and a Mainnet agent-wallet playground.
• Hardened example payment proofs with issued nonce, charge, session, and transaction-hash replay checks, plus package-local and repo-level example contract tests.
• Moved shared Mainnet agent-wallet preflight, fingerprint, balance, and risk-budget helpers into @stellar-agent/core so CLI and examples use the same guard semantics.
• Updated Codex payment guidance for Mainnet agent-wallet setup, funding, arming, autosign boundaries, local x402, and MPP workflows.
• Kept production facilitator-backed x402/MPP support, generic Mainnet auto-signing, and non-agent-wallet Mainnet autosign out of scope.

Artifacts

• npm package tarballs for every publishable @stellar-agent/* workspace package.
• Codex plugin artifact: stellar-agent-codex-plugin-v0.5.0.tgz.
• release-manifest.json with artifact SHA-256 checksums and source commit.

Verification

• pnpm release:preflight
• Fresh install from generated npm tarballs
• Bundled Codex plugin validation from the generated plugin tarball

Boundaries

• npm publication is queued through the separate protected Publish npm workflow and requires npm-production approval.
• Testnet remains the default.
• Mainnet local auto-signing and Mainnet secret-key storage remain blocked.