e42db348c9
Rebased onto current main. `hermes_cli/plugins.py` grew 103KB -> 265KB across 49 commits since the original branch point, and the attribution mechanism this change hooks into was replaced along the way: the `_tools_before` / `_plugin_tool_names` snapshot diff is now a registration ledger sliced from `registration_start`, and `_plugin_id` is `plugin_key`. Re-anchored accordingly: - Discovery-time pre-registration, module reuse, and the `provides_tools` opt-in are unchanged. - Attribution credits `_predeclared_tools` ahead of the ledger slice, since those tools registered before `registration_start` and the slice cannot see them. - A failed materialization no longer carries attribution across. The failure path now sweeps the whole ownership ledger for the plugin key, not just the `registration_start:` slice, so the pre-registered tools are disposed along with the adapter. Attribution and the registry now agree at zero instead of reporting tools the process is not serving. tests/hermes_cli/test_deferred_platform_client_tools.py 13/13. test_plugins.py, test_plugins_cmd_list.py, test_plugin_cli_registration.py 65/65. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
71 lines
3.3 KiB
YAML
71 lines
3.3 KiB
YAML
name: a2a-platform
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label: A2A
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kind: platform
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version: 1.0.0
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description: >
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A2A (Agent-to-Agent) protocol v1.0 support for Hermes Agent — both directions
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of the open Linux Foundation standard for inter-agent communication.
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OUTBOUND (client tools): a2a_discover, a2a_call, a2a_list, a2a_history, and
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a2a_orchestrate let the agent fetch another agent's Agent Card and send it
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tasks over JSON-RPC — works with any A2A-compliant peer (Hermes, LangChain,
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CrewAI, Google ADK, OpenClaw, ...).
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INBOUND (platform adapter): exposes Hermes as an A2A-discoverable agent. An
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Agent Card is served at /.well-known/agent-card.json (v1.0 canonical path;
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legacy agent.json also answers) and incoming tasks are routed
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into the agent's live gateway session like any other platform — so the agent
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that replies is the same one talking to its user, with full memory and
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context, not a throwaway clone.
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Security is on by default: no bearer token configured => localhost-only bind.
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Inbound task text passes through prompt-injection filters; outbound text is
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scrubbed of credential-shaped strings; every exchange is audit-logged and
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persisted to disk outside the context-compaction pipeline so conversations
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survive compaction and restarts.
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Pure stdlib transport (http.server + urllib) — no a2a-sdk dependency required.
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author: Nous Research
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# The outbound client tools. Declaring them here is what asks discovery to
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# import `tools.py` in CLI/TUI processes, where the plugin is otherwise
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# deferred and the tools would never register at all (#78050). The inbound
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# adapter stays deferred either way — only this submodule is imported.
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provides_tools:
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- a2a_discover
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- a2a_call
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- a2a_list
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- a2a_history
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- a2a_orchestrate
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# requires_env / optional_env are surfaced in the `hermes config` UI via the
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# platform-plugin env var injector in hermes_cli/config.py.
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requires_env: []
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optional_env:
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- name: A2A_PEER_TOKENS
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description: "Per-peer bearer tokens ('alice:tok1,bob:tok2'). Each remote agent gets its own credential; the matched name is the authenticated identity used for rate limiting, trust, and audit."
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prompt: "A2A per-peer tokens (name:token, comma-separated; or empty)"
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password: true
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- name: A2A_BEARER_TOKEN
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description: "Shared bearer token for inbound A2A calls (identity falls back to caller IP). With no token of any kind => bind to 127.0.0.1 only (no remote access)."
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prompt: "A2A shared bearer token (or empty for localhost-only)"
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password: true
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- name: A2A_HOST
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description: "Inbound bind host. Defaults to 127.0.0.1; only widens to 0.0.0.0 when a bearer token is set AND you opt in here."
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prompt: "A2A bind host (default 127.0.0.1)"
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password: false
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- name: A2A_PORT
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description: "Inbound A2A server port (default 9900)."
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prompt: "A2A port (default 9900)"
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password: false
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- name: A2A_AGENT_NAME
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description: "Name advertised on this agent's Agent Card (default: hostname-derived)."
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prompt: "A2A agent name"
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password: false
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- name: A2A_ALLOW_ALL_USERS
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description: "Allow any authenticated A2A peer to reach the agent (dev only)."
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prompt: "Allow all A2A peers? (true/false)"
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password: false
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- name: A2A_HOME_CHANNEL
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description: "Task/context id used as the cron / notification delivery target for deliver=a2a."
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prompt: "A2A home channel (or empty)"
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password: false
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