[Hendobox]

Description

New registry skill monitoring/rpc_health_probe v0.1.0 (#459): read-only EVM JSON-RPC probe for eth_chainId, eth_blockNumber, latency, and optional same-chain reference lag. Hosts gate trades on all_healthy.

Acceptance criteria → diff:

• Probe endpoints via operator evm_config / env URLs → skills/monitoring/rpc_health_probe/skill.py
• Chain identity vs resolve_chain().chain_id (wrong chain never all_healthy) → test_wrong_chain_never_all_healthy
• Reference wrong chain → lag unusable / not verified zero → test_reference_wrong_chain_not_verified_zero_lag
• HTTP 200 + JSON-RPC error → failed probe → test_jsonrpc_error_fails_even_if_http_fast
• No reference → lag_status: unchecked, block_lag: null → test_no_reference_lag_unchecked_not_zero
• Catalog, hubs, sitemap, extras, card fixture, CHANGELOG → docs + pyproject.toml via sync_extras.py

Type of Change

• New Skill — new registry bundle under skills/
• Skill Upgrade — changes to an existing skill under skills/
• Bug Fix — incorrect runtime or framework behavior
• Documentation — docs, README, CONTRIBUTING only
• Framework Feature — skillware/core/ loader, env, adapters
• CLI — skillware/cli.py, docs/usage/cli.md
• Examples — examples/*.py, agent loops, examples/README.md
• Packaging — PyPI wheel, pyproject.toml, MANIFEST.in
• RFC / meta — templates, labels, CI, or large design doc

Checklist (all PRs)

• Linked GitHub issue (Fixes #… or Refs #…)
• Scope matches the issue — no unrelated refactors
• Contribution complies with Legal notice and code ownership (original work, MIT license grant, no malicious logic)
• python -m black --check ., flake8, and ruff check . pass locally (or CI-equivalent subset)
• pytest skills/ and pytest tests/ pass locally when relevant
• CHANGELOG.md updated under [Unreleased] when user-visible behavior changes
• examples/README.md updated if this PR adds, renames, or removes a runnable script
• Ran pytest tests/test_registry_docs.py when skills, examples index, or agent-loops matrix changed
• Ran pytest tests/test_skill_docs.py when catalog Usage Examples or provider snippets changed

New or updated skill

Skip unless this PR adds or changes files under skills/.

Bundle and metadata

• Skill at skills/<category>/<skill_name>/ (from templates/python_skill/ or equivalent)
• manifest.yaml: name (full ID), version, description, parameters, constitution, real issuer
• Optional: short_description, issuer.github, issuer.org, requirements, env_vars

Effect, Directive, Assurance

• Deterministic skill.py (Effect; no ad-hoc LLM-generated execution paths)
• instructions.md (Directive) explains when and how to use the skill
• card.json (Presentation) issuer matches manifest when present
• test_skill.py (Assurance) covers execution and schema expectations
• SkillLoader.load_skill("<category>/<skill_name>") succeeds (or deps documented)

Documentation and catalog

• docs/skills/<category>/<skill_name>.md, category hub row, row in docs/skills/README.md, and docs/sitemap.md
• Usage Examples for Gemini, Claude, OpenAI, DeepSeek, Ollama per skill usage template

Constitution and safety (skills only)

Read-only JSON-RPC probes. No signing or broadcasting. RPC URLs redacted to host. Fail closed on wrong chain / RPC errors. Not legal advice.

Related Issues

Fixes #459

[rosspeili]

This LGTM @Hendobox, merging as is! <3 Thanks.