io.github.Oortonaut/mcacp
NPM · MCACP
MCP-to-ACP bridge — let any MCP client drive ACP coding agents
Available components
Last scanned (6 hours ago)
Scores higher than 55% of npm servers
Category Developer Tools
How this component scores in each security and reliability category. Every signal is checked automatically from public evidence about the published package, including repeated runs of it in an isolated sandbox, and we only credit what we can confirm. How we score → Why this is hard to score →
Supply Chain Security81
- No malware found by supply-chain analysis.Pass
- CVE check failed: a known high-severity CVE affects zod 3.25.76, a direct dependency. A fixed version is available. View diagnostics → Fail
- No install/post-install scripts declared.Pass
- 30 of 93 dependencies flagged as unhealthy. View diagnostics → Partial
Provenance & Transparency44
- Source repository is publicly reachable at the declared URL. View diagnostics → Pass
- Provenance check failed: no build-provenance attestation is published. See how to fix → View diagnostics → Fail
- Clear OSI-approved license (Apache-2.0).Pass
- Actively maintained (last published 278 days ago).Pass
- Disclosure check failed: no security disclosure policy was found in the source repository. See how to fix → Fail
Schema Quality & AI Usability82
- 100% of prompts and resources have a non-trivial description (not blank, and not just the item's name).Pass
- AI-judged instruction clarity (good).Pass
- Tool/resource definitions use about 1139 tokens (~45/item across 25 items; 24 tools + 1 resources), lean.Pass
- Usage-examples check failed: none of the tools include examples. See how to fix → Fail
Stability & Change Management90
- Stability observed for 27 of 30 days with no destabilising changes; credit accrues until the full window elapses.Partial
Tool Coverage99
- 100% of tools have a non-trivial description (not blank, and not just the tool's name).Pass
- 97% of tool parameters carry a description.Partial
Tool Safety75
- No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.Pass
- 0 of 4 tool(s) whose name or description implies an irreversible operation declare an MCP destructiveHint annotation; "agent_uninstall" implies "uninstall" and declares no destructiveHint at all, which the MCP spec reads as destructive by default. See how to fix → Fail
- An AI judge read all 25 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
Checks we ran (16)
- Malware scan
- Known CVEs
- Install scripts
- Dependency health
- Source repository
- Provenance
- License
- Maintenance
- Security disclosure
- Schema quality
- Stability
- Tool coverage
- Injection markers
- Destructive annotations
- Judged manipulation
- MCP protocol
Does not apply to this package (2)
- Endpoint SecurityScored on hosted endpoints only. A package has no live endpoint of its own for us to probe.
- Transport & ReachabilityScored on hosted endpoints only. A package has no live endpoint of its own for us to probe.
The score does not measure everything. What the score does not measure →
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.
- 6 Nov 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 87 to 90. That category is still filling its 30-day observation window: 26 days of observed history at the previous scan, 27 at this one. The score rises as the window fills, whether or not the server changes.
- 4 Nov 26 −2
- Stability: pass → 0.83 functional
- 29 Oct 26 0
- Stability: 0.97 → pass security
- 28 Oct 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 93 to 97. That category is still filling its 30-day observation window: 28 days of observed history at the previous scan, 29 at this one. The score rises as the window fills, whether or not the server changes.
- 27 Oct 26 −1
- Stability: pass → 0.93 functional
- 24 Oct 26 −5
- CVE-2023-54404 affects this package: high ▼ security
- Known CVEs: pass → fail ▼ security
- 21 Oct 26 0
- Stability: 0.97 → pass security
- 20 Oct 26 0
- Stability: pass → 0.97 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 6 Nov 2026 · Analysed npm/mcacp@0.1.3
Provenance No attestation
The registry publishes no build provenance for this version, so there is nothing to verify.
| Result | No attestation |
|---|---|
| Ecosystem | npm |
Background: How many MCP packages publish verified provenance →
Vulnerabilities 1 finding
| ID | CVE | Severity | Vector | Fix available |
|---|---|---|---|---|
| GHSA-mrhx-c7xc-m3w5 | CVE-2023-54404 | high | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H | yes |
Background: What a vulnerability scan can and cannot prove →
Dependencies 93 packages
| Packages resolved | 93 |
|---|---|
| Stale | 30 |
| Tree resolution | Complete |
Background: SBOMs and build attestations, explained →
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 →
agent_check_upgrades ~19
Check all installed agents for available version upgrades.
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.
agent_install ~42
Install an ACP agent from the registry.
| Name | Type | Req | Description |
|---|---|---|---|
| agentId | string | yes | Registry ID of the agent |
| version | string | – | Specific version (default: latest) |
No output schema declared.
No examples provided.
agent_uninstall ~30
Remove a locally installed ACP agent.
| Name | Type | Req | Description |
|---|---|---|---|
| agentId | string | yes | ID of the agent to uninstall |
No output schema declared.
No examples provided.
cancel ~24
Cancel an in-progress prompt.
| Name | Type | Req | Description |
|---|---|---|---|
| sessionId | string | yes | Session to cancel |
No output schema declared.
No examples provided.
close_session ~33
Close an active session. Session file preserved for future load_session.
| Name | Type | Req | Description |
|---|---|---|---|
| sessionId | string | yes | Session ID to close |
No output schema declared.
No examples provided.
discover_agents ~56
Scan editor configs (Zed settings.json, JetBrains acp.json) for ACP agents. Returns agents with command/args/env and source. To import, add them to agent_servers in your mcacp.json and call reload_config.
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.
events ~88
Block until any prompted session produces events. Returns events stamped with sessionId and agentId. Supports optional Nagle-style coalescing to batch events across sessions.
| Name | Type | Req | Description |
|---|---|---|---|
| nagleMs | number | – | Coalescing window in ms. Batches events arriving within this window. Default: 0 (immediate). |
| timeoutMs | number | – | Max wait time in ms. Returns empty on timeout. |
No output schema declared.
No examples provided.
get_agent_status ~29
Get detailed status of a running ACP agent.
| Name | Type | Req | Description |
|---|---|---|---|
| agentId | string | yes | Agent to query |
No output schema declared.
No examples provided.
grant_permission ~67
Respond to a pending permission request (operator policy). The agent resumes; new events flow to the queue.
| Name | Type | Req | Description |
|---|---|---|---|
| optionId | string | yes | Permission option to select |
| sessionId | string | yes | Session with pending permission |
| toolCallId | string | yes | Tool call ID requesting permission |
No output schema declared.
No examples provided.
initialize ~73
Spawn an ACP agent process and perform the initialize handshake. Must be called before creating sessions.
| Name | Type | Req | Description |
|---|---|---|---|
| agentId | string | yes | ID of the installed agent to initialize |
| clientCapabilities | object | – | Client capabilities |
| clientInfo | object | – | Calling client info |
| protocolVersion | number | – | Protocol version to negotiate |
No output schema declared.
No examples provided.
list_installed_agents ~27
List all locally installed ACP agents with their id, name, version, and description.
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.
list_running_agents ~24
List all spawned ACP agent processes with status, heartbeat, and active sessions.
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.
list_sessions ~35
List stored sessions. Does not require the agent to be running.
| Name | Type | Req | Description |
|---|---|---|---|
| agentId | string | yes | Agent ID to list sessions for |
No output schema declared.
No examples provided.
load_session ~63
Resume a previously created session. Agent must support session loading.
| Name | Type | Req | Description |
|---|---|---|---|
| agentId | string | yes | ID of the initialized agent |
| cwd | string | yes | Working directory |
| mcpServers | array | – | – |
| sessionId | string | yes | Session ID to resume |
No output schema declared.
No examples provided.
new_session ~89
Create a new ACP session on an initialized agent. Returns the agent's session ID.
| Name | Type | Req | Description |
|---|---|---|---|
| agentId | string | yes | ID of the initialized agent |
| cwd | string | yes | Working directory for the session |
| mcpServers | array | – | MCP servers to make available to the agent |
| permissionPolicy | string | – | Permission policy: elicit, allow_all, deny_all, or operator |
No output schema declared.
No examples provided.
prompt ~53
Block until at least one prompt event is available. Returns queued events including updates (with full ACP metadata), permission requests, and completion. The default way to consume prompt results.
| Name | Type | Req | Description |
|---|---|---|---|
| sessionId | string | yes | Active session ID |
No output schema declared.
No examples provided.
prompt_events ~48
Non-blocking poll for prompt events. Returns all queued events (updates, permission requests, completion). May return empty array if no new events.
| Name | Type | Req | Description |
|---|---|---|---|
| sessionId | string | yes | Active session ID |
No output schema declared.
No examples provided.
prompt_start ~58
Send a prompt to an active ACP session. Returns immediately with { status: "prompted" }. Use prompt or prompt_events to consume events.
| Name | Type | Req | Description |
|---|---|---|---|
| prompt | – | yes | Prompt text or content blocks |
| sessionId | string | yes | Active session ID |
No output schema declared.
No examples provided.
registry_search ~49
Search configured ACP agent registries for available agents.
| Name | Type | Req | Description |
|---|---|---|---|
| query | string | – | Search string to match against name, description, authors |
| showIncompatible | boolean | – | Include platform-incompatible agents |
No output schema declared.
No examples provided.
reload_config ~36
Reload configuration from disk. Use after editing mcacp.json to pick up new agent_servers entries or changed settings. Returns the new config.
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.
request_permission ~62
Send an MCP elicitation to the outer host asking for a permission decision. Does not require a running agent or session.
| Name | Type | Req | Description |
|---|---|---|---|
| options | array | – | Permission choices (defaults to Allow / Reject) |
| title | string | yes | Human-readable description of the action requesting permission |
No output schema declared.
No examples provided.
set_agent_status ~38
Set an explicit status text for a running agent.
| Name | Type | Req | Description |
|---|---|---|---|
| agentId | string | yes | Agent ID |
| status | string | yes | Status text |
No output schema declared.
No examples provided.
set_mode ~38
Switch the operating mode of a session.
| Name | Type | Req | Description |
|---|---|---|---|
| modeId | string | yes | Mode to switch to |
| sessionId | string | yes | Session ID |
No output schema declared.
No examples provided.
shutdown ~35
Gracefully shut down a running ACP agent, closing all sessions.
| Name | Type | Req | Description |
|---|---|---|---|
| agentId | string | yes | ID of the agent to shut down |
No output schema declared.
No examples provided.
How do I install the io.github.Oortonaut/mcacp MCP server?
io.github.Oortonaut/mcacp runs locally as an npm package, launched with npx -y mcacp. Ready-made configuration for Claude, Cursor, VS Code, Codex and 5 more is on this page, copied from each client's own documentation.
npm · mcacp
claude mcp add oortonaut-mcacp -- npx -y mcacp
What is the io.github.Oortonaut/mcacp MCP server?
io.github.Oortonaut/mcacp is an MCP server listed in the public MCP registry as io.github.Oortonaut/mcacp. MCP-to-ACP bridge, let any MCP client drive ACP coding agents. This page covers its npm package (mcacp).
Is the io.github.Oortonaut/mcacp MCP server safe to use?
io.github.Oortonaut/mcacp scores 77 out of 100 on VerifyMCP. We recorded 1 known advisory against it as of 6 November 2026. It declares no install or post-install scripts. 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 io.github.Oortonaut/mcacp MCP server expose?
io.github.Oortonaut/mcacp exposes 24 tools: list_installed_agents, registry_search, agent_install, agent_uninstall, agent_check_upgrades, and 19 more. Their descriptions and schemas cost roughly 1,116 tokens of context every time the server is loaded.
Is the io.github.Oortonaut/mcacp MCP server still maintained?
io.github.Oortonaut/mcacp is still listed as active in the MCP registry. We last reached this channel on 6 November 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.
What licence is the io.github.Oortonaut/mcacp MCP server under?
io.github.Oortonaut/mcacp declares the Apache-2.0 licence, which is OSI-approved. That covers the source only, and says nothing about the cost of any service it calls.
What did VerifyMCP test on the io.github.Oortonaut/mcacp MCP server?
VerifyMCP ran 16 checks on io.github.Oortonaut/mcacp, covering Malware scan, Known CVEs, Install scripts, Dependency health and 12 more. Endpoint Security and Transport & Reachability do not apply to an npm package, so they were not tested. The score does not measure everything, and the scoring documentation lists what it leaves out.