# ContextOS — Powered Exoskeleton for AI Coding (oci · ghcr.io/yubinbin32-ops/contextos)

Context exoskeleton for AI development: reduce token usage and context occupancy.

- Trust score: 43/100 (low)
- Change this week: +36
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-10-16

## Components

- oci · `ghcr.io/yubinbin32-ops/contextos`: 43/100 (this document), [markdown](https://verifymcp.io/servers/yubinbin32-ops-contextos/ghcr-io-yubinbin32-ops-contextos.md), [page](https://verifymcp.io/servers/yubinbin32-ops-contextos/ghcr-io-yubinbin32-ops-contextos)

## Channel facts

- Registry: `oci`
- Package: `ghcr.io/yubinbin32-ops/contextos`
- Version: `3.0.3`
- Transport: `stdio`

## Trust breakdown

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. Scores are 0–100 per category. Scoring method: https://verifymcp.io/docs/scoring (what has changed: https://verifymcp.io/docs/scoring/changelog)

Scored 2026-10-16.

- **Supply Chain Security**: 0/100
  - No malware scan is available for this kind of package: the supply-chain vendors we use do not cover it. This is a permanent gap in our coverage, not a finding about the package.
  - Known CVEs could not be checked: this artifact ships no SBOM or dependency manifest, so there is no dependency list to read.
  - Install-script risk not yet assessed.
  - Dependency health could not be checked: this artifact ships no SBOM or dependency manifest, so there is no dependency list to read.
- **Provenance & Transparency**: 35/100
  - Source repository is publicly reachable at the declared URL.
  - Provenance check failed: no build-provenance attestation is published.
  - License check failed: no license is declared.
  - Actively maintained (last published 8 days ago).
  - Publishes a security disclosure policy (SECURITY.md).
- **Schema Quality & AI Usability**: 54/100
  - AI-judged instruction clarity (good).
  - Context-footprint check failed: tool/resource definitions use about 404 tokens (~404/item across 1 items; 1 tools + 0 resources), over budget; trim descriptions and params.
  - Usage-examples check failed: none of the tools include examples.
- **Stability & Change Management**: 57/100
  - Stability observed for 17 of 30 days with no destabilising changes; credit accrues until the full window elapses.
- **Tool Coverage**: 100/100
  - 100% of tools have a non-trivial description (not blank, and not just the tool's name).
  - 100% of tool parameters carry a description.
- **Tool Safety**: 100/100
  - No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.
  - We read all 1 captured tool definition(s), and no name or description among them implies an irreversible operation.
  - An AI judge read all 2 captured unit(s) of tool text and found none that tries to manipulate the model reading it.
- **Capabilities**: 100/100
  - Implements a supported MCP spec version (2025-11-25); the latest is 2026-07-28.

**Unverified: 1 category.** A category scored 0 because we could not verify it: a data source with nothing on this package, evidence we could not reach, or a check we could not run. We only credit what we can confirm.

## Install

### How do I install the ContextOS — Powered Exoskeleton for AI Coding MCP server?

ContextOS — Powered Exoskeleton for AI Coding runs locally as a container image, launched with docker run --rm -i -e CONTEXTOS_PROJECT_ROOT ghcr.io/yubinbin32-ops/contextos:3.0.3. Ready-made configuration for Claude, Cursor, VS Code, Codex and 3 more is on this page, copied from each client's own documentation.

### Claude

```bash
claude mcp add yubinbin32-ops-contextos -- docker run --rm -i -e CONTEXTOS_PROJECT_ROOT ghcr.io/yubinbin32-ops/contextos:3.0.3
```

This image reads CONTEXTOS_PROJECT_ROOT. Set it in your client's env block for this server; docker run -e passes it through to the container.

### Cursor

```json
{
  "mcpServers": {
    "yubinbin32-ops-contextos": {
      "command": "docker",
      "args": [
        "run",
        "--rm",
        "-i",
        "-e",
        "CONTEXTOS_PROJECT_ROOT",
        "ghcr.io/yubinbin32-ops/contextos:3.0.3"
      ]
    }
  }
}
```

This image reads CONTEXTOS_PROJECT_ROOT. Set it in your client's env block for this server; docker run -e passes it through to the container.

### VS Code

```json
{
  "servers": {
    "yubinbin32-ops-contextos": {
      "command": "docker",
      "args": [
        "run",
        "--rm",
        "-i",
        "-e",
        "CONTEXTOS_PROJECT_ROOT",
        "ghcr.io/yubinbin32-ops/contextos:3.0.3"
      ]
    }
  }
}
```

This image reads CONTEXTOS_PROJECT_ROOT. Set it in your client's env block for this server; docker run -e passes it through to the container.

### Codex

```bash
codex mcp add yubinbin32-ops-contextos -- docker run --rm -i -e CONTEXTOS_PROJECT_ROOT ghcr.io/yubinbin32-ops/contextos:3.0.3
```

This image reads CONTEXTOS_PROJECT_ROOT. Set it in your client's env block for this server; docker run -e passes it through to the container.

### opencode

```json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "yubinbin32-ops-contextos": {
      "type": "local",
      "command": [
        "docker",
        "run",
        "--rm",
        "-i",
        "-e",
        "CONTEXTOS_PROJECT_ROOT",
        "ghcr.io/yubinbin32-ops/contextos:3.0.3"
      ],
      "enabled": true
    }
  }
}
```

This image reads CONTEXTOS_PROJECT_ROOT. Set it in your client's env block for this server; docker run -e passes it through to the container.

### Hermes

```yaml
mcp_servers:
  yubinbin32-ops-contextos:
    command: "docker"
    args: ["run", "--rm", "-i", "-e", "CONTEXTOS_PROJECT_ROOT", "ghcr.io/yubinbin32-ops/contextos:3.0.3"]
```

This image reads CONTEXTOS_PROJECT_ROOT. Set it in your client's env block for this server; docker run -e passes it through to the container.

### Netclaw

```json
{
  "McpServers": {
    "yubinbin32-ops-contextos": {
      "Transport": "stdio",
      "Command": "docker",
      "Arguments": [
        "run",
        "--rm",
        "-i",
        "-e",
        "CONTEXTOS_PROJECT_ROOT",
        "ghcr.io/yubinbin32-ops/contextos:3.0.3"
      ]
    }
  }
}
```

This image reads CONTEXTOS_PROJECT_ROOT. Set it in your client's env block for this server; docker run -e passes it through to the container.

### Other

```json
{
  "mcpServers": {
    "yubinbin32-ops-contextos": {
      "command": "docker",
      "args": [
        "run",
        "--rm",
        "-i",
        "-e",
        "CONTEXTOS_PROJECT_ROOT",
        "ghcr.io/yubinbin32-ops/contextos:3.0.3"
      ]
    }
  }
}
```

This image reads CONTEXTOS_PROJECT_ROOT. Set it in your client's env block for this server; docker run -e passes it through to the container.

## Changelog

Every change recorded for this component, newest first. Days that predate change tracking, or that we cannot explain, say so: "we were watching and nothing happened" and "we were not watching" are different claims.

### 2026-10-16 (score 43, +1)

No change was recorded against any check on this day. Stability & Change Management went from 53 to 57. That category is still filling its 30-day observation window: 16 days of observed history at the previous scan, 17 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-10-15 (score 42, +35)

- [security improvement] Injection markers: unverified → pass
- [functional improvement] Schema quality: 594 → 404
- [functional improvement] Tool coverage: 21% → 100%
- [functional improvement] Tool coverage: unverified → 100
- [functional improvement] Stability: unverified → 0.53
- [functional improvement] MCP protocol: unverified → pass

### 2026-10-13 (score 7, 0)

- [functional] Package version: 2.7.1 → 3.0.3

### 2026-10-09 (score 7, 0)

- [functional] Package version: 3.0.2 → 3.0.3

### 2026-10-07 (score 7, −26)

- [security regression] Tool safety: pass → unverified
- [security regression] Stability: 0.17 → unverified
- [functional regression] Capabilities: pass → unverified
- [functional regression] Tool coverage: 100 → unverified
- [functional] First check of Schema quality: unverified
- [functional] Package version: 2.7.1 → 3.0.2

### 2026-10-03 (score 33, +1)

No change was recorded against any check on this day. Stability & Change Management went from 10 to 13. That category is still filling its 30-day observation window: 3 days of observed history at the previous scan, 4 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-10-01 (score 32, +1)

No change was recorded against any check on this day. Stability & Change Management went from 3 to 7. That category is still filling its 30-day observation window: 1 days of observed history at the previous scan, 2 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-09-30 (score 31, 0)

- [functional improvement] Stability: unverified → 0.03
- [functional] Package version: 2.7.0 → 2.7.1

## MCP tools (1)

### `contextos` (~165 tokens)

With a known goal, ask({onboard:{goal:"ModuleIndex"}}) returns local overview, trusted graph/owners and verified source; ambiguity is partial, no model fallback. Without a goal use ask({overview:true}). ask({request|inspect}) gets exact source evidence. micro delegates bounded API work; agent delegates implementation to a configured CLI. command runs once; command({action:"get",id}) retrieves. change applies edits/verify. ops({capability,action,args}) exposes state and advanced operations. Put parameters in args; projectRoot absolute.

Input parameters:

- `action` (string, required): micro | ask | command | agent | change
- `args` (object): Action parameters; advanced operations use capability/action/args.
- `projectRoot` (string, required): Absolute repository root.

## Diagnostics

Captured diagnostic sections: Provenance. The full working is on the page: https://verifymcp.io/servers/yubinbin32-ops-contextos/ghcr-io-yubinbin32-ops-contextos#diagnostics

## Score history

- 2026-10-16: 43
- 2026-10-15: 42
- 2026-10-14: 7
- 2026-10-13: 7
- 2026-10-12: 7
- 2026-10-10: 7
- 2026-10-09: 7
- 2026-10-07: 7
- 2026-10-04: 33
- 2026-10-03: 33
- 2026-10-02: 32
- 2026-10-01: 32
- 2026-09-30: 31
- 2026-09-29: 31

## Common questions

### What is the ContextOS — Powered Exoskeleton for AI Coding MCP server?

ContextOS — Powered Exoskeleton for AI Coding is an MCP server listed in the public MCP registry as io.github.yubinbin32-ops/contextos. Context exoskeleton for AI development: reduce token usage and context occupancy. This page covers its container image (ghcr.io/yubinbin32-ops/contextos).

### Is the ContextOS — Powered Exoskeleton for AI Coding MCP server safe to use?

ContextOS — Powered Exoskeleton for AI Coding scores 43 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 ContextOS — Powered Exoskeleton for AI Coding MCP server expose?

ContextOS — Powered Exoskeleton for AI Coding exposes 1 tool: contextos. Their descriptions and schemas cost roughly 165 tokens of context every time the server is loaded.

### Is the ContextOS — Powered Exoskeleton for AI Coding MCP server still maintained?

ContextOS — Powered Exoskeleton for AI Coding is still listed as active in the MCP registry. We last reached this channel on 16 October 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.

## Links

- GitHub Container Registry: https://ghcr.io/yubinbin32-ops/contextos
- Repository: https://github.com/yubinbin32-ops/ContextOS
- Changelog RSS feed: https://verifymcp.io/servers/yubinbin32-ops-contextos/ghcr-io-yubinbin32-ops-contextos.xml
- Changelog JSON feed: https://verifymcp.io/servers/yubinbin32-ops-contextos/ghcr-io-yubinbin32-ops-contextos.json
- HTML version of this page: https://verifymcp.io/servers/yubinbin32-ops-contextos/ghcr-io-yubinbin32-ops-contextos