Opus 4.8 Agent
REMOTE · FARM.LLMOTIONS.COM · SCANNED SEP 21
Authenticated async Opus 4.8 Agent agent with status polling and artifact results.
Available components
Recent critical change
Authorization (21 Sept 2026). See the changelog before you install this server.
How this component scores in each security and reliability category. Every signal is checked automatically against the live server, and we only credit what we can confirm. How we score → Why this is hard to score →
Endpoint Security57
- The endpoint's TLS certificate is valid, in date, and uses a strong key. View diagnostics → Pass
- Authorisation check failed: no authorisation is required to call this server, and it exposes a tool marked destructive (agentfarm_cancel_run). See how to fix → View diagnostics → Fail
- HTTPS is enforced; there's no plaintext access path. View diagnostics → Pass
- HSTS check failed: the Strict-Transport-Security header is absent. See how to fix → View diagnostics → Fail
- DNSSEC check failed: this domain isn't protected by DNSSEC. See how to fix → View diagnostics → Fail
Transport & Reachability100
- Verified streamable-http transport via a live MCP handshake. View diagnostics → Pass
Schema Quality & AI Usability79
- AI-judged instruction clarity (excellent).Pass
- Tool/resource definitions use about 270 tokens (~54/item across 5 items; 5 tools + 0 resources), lean.Pass
- Usage-examples check failed: none of the tools include examples. See how to fix → Fail
Stability & Change Management97
- Stability observed for 29 of 30 days with no destabilising changes; credit accrues until the full window elapses.Partial
Tool Coverage100
- 100% of tools have a non-trivial description (not blank, and not just the tool's name).Pass
- 100% of tool parameters carry a description.Pass
Tool Safety100
- No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.Pass
- We read all 5 captured tool definition(s), and no name or description among them implies an irreversible operation.Pass
- An AI judge read all 6 captured unit(s) of tool text and found none that tries to manipulate the model reading it.Pass
Capabilities100
- Implements a supported MCP spec version (2025-11-25); the latest is 2026-07-28.Pass
How do I install the Opus 4.8 Agent MCP server?
Opus 4.8 Agent is a hosted endpoint at https://farm.llmotions.com/mcp/agents/opus-4-8-agent, so there is nothing to install locally. Ready-made configuration for Claude, Cursor, VS Code, Codex and 5 more is on this page, copied from each client's own documentation.
remote · farm.llmotions.com
claude mcp add --transport http com-llmotions-farm-opus-4-8-agent 'https://farm.llmotions.com/mcp/agents/opus-4-8-agent'
{
"mcpServers": {
"com-llmotions-farm-opus-4-8-agent": {
"url": "https://farm.llmotions.com/mcp/agents/opus-4-8-agent"
}
}
} {
"servers": {
"com-llmotions-farm-opus-4-8-agent": {
"type": "http",
"url": "https://farm.llmotions.com/mcp/agents/opus-4-8-agent"
}
}
} [mcp_servers.com-llmotions-farm-opus-4-8-agent] url = "https://farm.llmotions.com/mcp/agents/opus-4-8-agent"
{
"$schema": "https://opencode.ai/config.json",
"mcp": {
"com-llmotions-farm-opus-4-8-agent": {
"type": "remote",
"url": "https://farm.llmotions.com/mcp/agents/opus-4-8-agent",
"enabled": true
}
}
} openclaw mcp add com-llmotions-farm-opus-4-8-agent --url 'https://farm.llmotions.com/mcp/agents/opus-4-8-agent' --transport streamable-http
mcp_servers:
com-llmotions-farm-opus-4-8-agent:
url: "https://farm.llmotions.com/mcp/agents/opus-4-8-agent" {
"McpServers": {
"com-llmotions-farm-opus-4-8-agent": {
"Transport": "http",
"Url": "https://farm.llmotions.com/mcp/agents/opus-4-8-agent"
}
}
} assistant mcp add com-llmotions-farm-opus-4-8-agent -t streamable-http -u 'https://farm.llmotions.com/mcp/agents/opus-4-8-agent'
{
"mcpServers": {
"com-llmotions-farm-opus-4-8-agent": {
"type": "http",
"url": "https://farm.llmotions.com/mcp/agents/opus-4-8-agent"
}
}
} The mcpServers block is a cross-client convention. Remote transports vary, so check your client's docs.
Every change we have recorded for this component, newest first. Security-relevant changes are always shown. ▲ marks a change for the better, ▼ a change for the worse; unmarked changes are neutral.
- 21 Sept 26 +1
- Authorization: unverified → fail ▼ critical
- 20 Sept 26 −1
- Stability: pass → 0.93 functional
- 19 Sept 26 +46
- Injection markers: unverified → pass ▲ security
- Stability: unverified → pass ▲ security
- Authorization: Authorisation not fully verified: this server exposes a tool marked destructive (agentfarm_cancel_run) and its handshake is open, but we could not confirm whether a tool call is gated, so we do not assert it is callable unauthenticated. security
- Endpoint reachability: not serving MCP → reachable ▲ functional
- Tool coverage: unverified → 100 ▲ functional
- MCP protocol: unverified → pass ▲ functional
- 17 Sept 26 +10
- Transport: fail → pass ▲ security
- 16 Sept 26 −56
- Endpoint reachability: reachable → not serving MCP ▼ security
- Authorization: fail → unverified ▼ security
- Tool safety: pass → unverified ▼ security
- Stability: 0.97 → unverified ▼ security
- Transport: pass → fail ▼ security
- Capabilities: pass → unverified ▼ functional
- Tool coverage: 100 → unverified ▼ functional
- 15 Sept 26 0
- Stability: pass → 0.97 functional
- 12 Sept 26 +46
- Authorization: unverified → fail ▼ critical
- Injection markers: unverified → pass ▲ security
- Stability: unverified → pass ▲ security
- Endpoint reachability: not serving MCP → reachable ▲ functional
- Tool coverage: unverified → 100 ▲ functional
- MCP protocol: unverified → pass ▲ functional
- 11 Sept 26 −46
- Endpoint reachability: reachable → not serving MCP ▼ security
- Stability: pass → unverified ▼ security
- Tool safety: pass → unverified ▼ security
- Authorization: Authorisation not fully verified: no authorisation is required to connect, but we couldn't read the tool list to see what that exposes. security
- Capabilities: pass → unverified ▼ functional
- Tool coverage: 100 → unverified ▼ functional
Diagnostic detail from the automated scan of this channel: what the scanner observed at each step, so you can see exactly where a check passed or failed. It is informational only and never changes the trust score.
Captured 21 Sept 2026 · Probed https://farm.llmotions.com/mcp/agents/opus-4-8-agent
TLS valid
Negotiated TLS 1.3 with TLS_AES_128_GCM_SHA256 .
| Subject | Issuer | Valid from | Valid until | Key | Signature | Serial |
|---|---|---|---|---|---|---|
| CN=farm.llmotions.com | CN=YE1,O=Let's Encrypt,C=US | 15 Aug 2026 | 13 Nov 2026 | ECDSA 256 | ECDSA-SHA384 | 5ddb781bf971ca577255c1ba45d28485888 |
| SANs: farm.llmotions.com | ||||||
| CN=YE1,O=Let's Encrypt,C=US (CA) | CN=Root YE,O=ISRG,C=US | 3 Sept 2025 | 2 Sept 2028 | ECDSA 384 | ECDSA-SHA384 | 5ddd70dd31f801c85c186a7a04b80afe |
| CN=Root YE,O=ISRG,C=US (CA) | CN=ISRG Root X2,O=Internet Security Research Group,C=US | 13 May 2026 | 2 Sept 2032 | ECDSA 384 | ECDSA-SHA384 | 872165fc34b6e5fba8add5b3705fb53a |
| CN=ISRG Root X2,O=Internet Security Research Group,C=US (CA) | CN=ISRG Root X1,O=Internet Security Research Group,C=US | 13 May 2026 | 2 Sept 2032 | ECDSA 384 | SHA256-RSA | 6c8f1dc727c7117f7baf853ac980f9cd |
Background: What to check on a remote MCP endpoint →
DNSSEC insecure
Validation of farm.llmotions.com. — Not signed
| Zone | DS | Keys | Algorithms | Outcome |
|---|---|---|---|---|
| . | trust_anchor | 20326, 38696 | 8, 8 | Verified |
| com. | present | 19718 | 13 | Verified |
| llmotions.com. | absent | Unsigned (proven) parent-signed NSEC/NSEC3 proves an unsigned delegation |
Authentication No authorisation required
The endpoint answered without asking for a token. Anyone who knows the URL can reach it.
| Result | No authorisation required |
|---|---|
| HTTP status | 200 |
Background: How OAuth 2.1 works in the 2026 MCP spec →
Transports 2 probes
| Transport | URL | Outcome | Status | Location |
|---|---|---|---|---|
| streamable-http | https://farm.llmotions.com/mcp/agents/opus-4-8-agent | Verified | 200 | |
| http (plaintext) | http://farm.llmotions.com/mcp/agents/opus-4-8-agent | HTTPS enforced | 301 | https://farm.llmotions.com/mcp/agents/opus-4-8-agent |
The tools this component advertises to a client, with an estimated token cost for each. Expand a tool to see its parameters and schema. The per-tool counts are indicative and are not scored directly; the schema's total context footprint is one signal in Schema Quality & AI Usability. A tool's description is untrusted text the model reads on every call, which is what makes this list a security surface and not just an inventory: how tool poisoning works →
agentfarm_agent_info Get Opus 4.8 Agent access information ~44
Returns this agent's identity, listed per-task price, MCP endpoint, and access URL. This metadata call does not run the model and does not require a bearer token.
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.
agentfarm_cancel_run Cancel AgentFarm run ~31
Cancels an authenticated queued or running run.
| Name | Type | Req | Description |
|---|---|---|---|
| run_id | string | yes | AgentFarm run identifier. |
No output schema declared.
No examples provided.
agentfarm_create_run Create a Opus 4.8 Agent run ~92
Queues an authenticated asynchronous task. This can consume paid model capacity. Poll with agentfarm_get_run_status, then read agentfarm_get_run_result.
| Name | Type | Req | Description |
|---|---|---|---|
| idempotency_key | string | – | Optional retry key; the same key and input return the original run. |
| task | string | yes | Task for the agent to complete. |
| task_input | – | – | Optional JSON-compatible context or input data for the task. |
No output schema declared.
No examples provided.
agentfarm_get_run_result Get AgentFarm run result ~36
Returns the final summary and artifact download URLs for an authenticated run.
| Name | Type | Req | Description |
|---|---|---|---|
| run_id | string | yes | AgentFarm run identifier. |
No output schema declared.
No examples provided.
agentfarm_get_run_status Get AgentFarm run status ~38
Returns queued, running, succeeded, or failed status for an authenticated run.
| Name | Type | Req | Description |
|---|---|---|---|
| run_id | string | yes | AgentFarm run identifier. |
No output schema declared.
No examples provided.
What is the Opus 4.8 Agent MCP server?
Opus 4.8 Agent is an MCP server listed in the public MCP registry as com.llmotions.farm/opus-4-8-agent. Authenticated async Opus 4.8 Agent agent with status polling and artifact results. This page covers its hosted endpoint (https://farm.llmotions.com/mcp/agents/opus-4-8-agent).
Is the Opus 4.8 Agent MCP server safe to use?
Opus 4.8 Agent scores 79 out of 100 on VerifyMCP. That is a record of what we were able to check automatically, not an endorsement. The category breakdown on this page shows every signal behind the number, including the ones we could not confirm.
What tools does the Opus 4.8 Agent MCP server expose?
Opus 4.8 Agent exposes 5 tools: agentfarm_agent_info, agentfarm_create_run, agentfarm_get_run_status, agentfarm_get_run_result, agentfarm_cancel_run. Their descriptions and schemas cost roughly 241 tokens of context every time the server is loaded.
Does the Opus 4.8 Agent MCP server require authentication?
No. We connected to Opus 4.8 Agent without credentials and it answered, so anything it exposes is reachable by anyone who knows the address.
Is the Opus 4.8 Agent MCP server still maintained?
Opus 4.8 Agent is still listed as active in the MCP registry. We last reached this channel on 21 September 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.