Aegis Security Skills
NPM · AEGIS-SKILLS · 2 COMPONENTS
Read-only library of 24 defensive cybersecurity skills: ATT&CK, ATLAS, DFIR, CTEM and more.
Available components
Last scanned (4 hours ago)
Scores higher than 39% of npm servers
Category Security
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 Security80
- No malware found by supply-chain analysis.Pass
- CVE check failed: a known high-severity CVE affects @modelcontextprotocol/sdk 1.31.0, a direct dependency. A fixed version is available. View diagnostics → Fail
- No install/post-install scripts declared.Pass
- 38 of 103 dependencies flagged as unhealthy. View diagnostics → Partial
Provenance & Transparency48
- 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 OR MIT)).Pass
- Actively maintained (last published 9 days ago).Pass
- Publishes a security disclosure policy (SECURITY.md).Pass
Schema Quality & AI Usability72
- AI-judged instruction clarity (good).Pass
- Tool/resource definitions use about 222 tokens (~74/item across 3 items; 3 tools + 0 resources), lean.Pass
- Usage-examples check failed: none of the tools include examples. See how to fix → Fail
Stability & Change Management30
- Stability observed for 9 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 3 captured tool definition(s), and no name or description among them implies an irreversible operation.Pass
- An AI judge read all 4 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
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.
- 23 Oct 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 27 to 30. That category is still filling its 30-day observation window: 8 days of observed history at the previous scan, 9 at this one. The score rises as the window fills, whether or not the server changes.
- 22 Oct 26 +3
- Stability: unverified → 0.27 ▲ functional
- 21 Oct 26 −5
- CVE-2026-111769 affects this package: high ▼ security
- CVE-2026-111768 affects this package: high ▼ security
- CVE-2026-111771 affects this package: high ▼ security
- CVE-2026-111767 affects this package: high ▼ security
- Known CVEs: partial → fail ▼ security
- CVE-2026-97058 no longer affects this package ▲ security
- 14 Oct 26 +31
- Injection markers: unverified → pass ▲ security
- First check of Judged manipulation: pass security
- Stability: Stability not yet verified: not enough scan history yet (needs a 30-day window). security
- MCP protocol: unverified → pass ▲ functional
- Tool coverage: unverified → 100 ▲ functional
- First check of Schema quality: fail functional
- First check of Destructive annotations: pass functional
- First check of Schema quality: pass functional
- First check of Schema quality: good functional
- First check of Tool coverage: 100 functional
- 13 Oct 26 39
First indexed and scored.
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 23 Oct 2026 · Analysed npm/aegis-skills@1.5.0
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 4 findings
| ID | CVE | Severity | Vector | Fix available |
|---|---|---|---|---|
| GHSA-22jm-h49p-29qw | CVE-2026-111767 | high | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:L | yes |
| GHSA-46jr-4wx8-v453 | CVE-2026-111768 | high | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H | yes |
| GHSA-6prh-2h8m-c8cw | CVE-2026-111769 | medium | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:N | yes |
| GHSA-rvq5-wwqv-78pq | CVE-2026-111771 | medium | CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N | yes |
Background: What a vulnerability scan can and cannot prove →
Dependencies 103 packages
| Packages resolved | 103 |
|---|---|
| Stale | 38 |
| 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 →
get_skill Get an Aegis skill ~41
Return a skill's description, frameworks, tags, context and ordered phase ids.
| Name | Type | Req | Description |
|---|---|---|---|
| name | string | yes | Skill slug, e.g. "exposure-validation" |
No output schema declared.
No examples provided.
get_skill_phase Load a skill phase ~75
Load the methodology content for one phase of a skill. The phase is given as a phase id or as a 0-based index among authored phases.
| Name | Type | Req | Description |
|---|---|---|---|
| name | string | yes | Skill slug |
| phase | string | yes | Phase id (e.g. "edr-deployment") or index (e.g. "0") |
No output schema declared.
No examples provided.
list_skills List Aegis skills ~64
List available defensive security skills, optionally filtered by family or a free-text query (matched against name, description, tags and frameworks).
| Name | Type | Req | Description |
|---|---|---|---|
| family | string | – | Skill family: framework, intel, response, domain, governance |
| query | string | – | Free-text filter |
No output schema declared.
No examples provided.
How do I install the Aegis Security Skills MCP server?
Aegis Security Skills runs locally as an npm package, launched with npx -y aegis-skills. Ready-made configuration for Claude, Cursor, VS Code, Codex and 5 more is on this page, copied from each client's own documentation.
npm · aegis-skills
claude mcp add drupadsachania-aegis-skills -- npx -y aegis-skills
What is the Aegis Security Skills MCP server?
Aegis Security Skills is an MCP server listed in the public MCP registry as io.github.drupadsachania/aegis-skills. Read-only library of 24 defensive cybersecurity skills: ATT&CK, ATLAS, DFIR, CTEM and more. This page covers its npm package (aegis-skills).
Is the Aegis Security Skills MCP server safe to use?
Aegis Security Skills scores 69 out of 100 on VerifyMCP. We recorded 4 known advisories against it as of 23 October 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 Aegis Security Skills MCP server expose?
Aegis Security Skills exposes 3 tools: list_skills, get_skill, get_skill_phase. Their descriptions and schemas cost roughly 180 tokens of context every time the server is loaded.
Is the Aegis Security Skills MCP server still maintained?
Aegis Security Skills is still listed as active in the MCP registry. We last reached this channel on 23 October 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.