Agent skill

Hermes Security Review

by OnlyTerp in OnlyTerp/hermes-optimization-guide

Review Hermes settings for security risks. An agent skill from OnlyTerp/hermes-optimization-guide.

MITAuto-check: notesSecurity

Install Hermes Security Review

skills CLI
$ npx skills add OnlyTerp/hermes-optimization-guide --skill hermes-security-review -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI
$ gh skill install OnlyTerp/hermes-optimization-guide hermes-security-review --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy
$ git clone --depth 1 https://github.com/OnlyTerp/hermes-optimization-guide.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/hermes-security-review .claude/skills/hermes-security-review && rm -rf skills-src

Use ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.

Claude Code skills documentation · loads skills from .claude/skills/

Facts

Skill name
hermes-security-review
GitHub stars
688
Token cost
~1.1k tokens
SKILL.md length
407 words
Files
1
Skills in repo
4
Repo updated
First seen
Licence
MIT

At a glance

Review Hermes settings for security risks. An agent skill from OnlyTerp/hermes-optimization-guide.

  • Works in 6 steps: Approval and safety settings → Secrets file permissions. Expect 600 → Who can talk to it. List… → …
  • Tasks that involve Security review
  • SKILL.md covers When to Use, Procedure, Verification and Pitfalls
  • Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md

What it does

Hermes Security Review is an agent skill from OnlyTerp/hermes-optimization-guide. Review Hermes settings for security risks.

Its SKILL.md is about 1.1k tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.

It sits in Security, covering Security review. The repository describes itself as: Hermes Agent setup, migration, LightRAG, Telegram, and skill creation guide. The licence is MIT.

When your agent uses it

  • Tasks that involve Security review

Example prompts

  • “/hermes-security-review”

Requirements

  • Docker

Workflow steps

6 steps, taken from the first numbered list in SKILL.md.

  1. Approval and safety settings
  2. Secrets file permissions. Expect 600
  3. Who can talk to it. List allowlist-related key names in the secrets file, without values, plus pending pairings
  4. Supply chain
  5. Rate what you found
  6. Report findings by severity with the exact fix for each: hermes config set …, chmod 600 …, an allowlist line, or hermes pairing revoke ……

What it can do on your machine

Read from SKILL.md and the folder at commit f865f8a. It shows what the files ask for, not the result of running them.

  • Tool permissions

    Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.

    From allowed-tools in the SKILL.md frontmatter.

  • Runs code

    No scripts in the folder and no shell commands in SKILL.md (its code samples are bash).

    From the folder's file list and the shell code blocks in SKILL.md.

  • Network

    No URLs in SKILL.md.

    From URLs in SKILL.md, links to its own repository left out.

  • Credentials

    Names no API keys, tokens, secrets or passwords.

    From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Hermes Security Review loads about 1.1k tokens when it runs. Until then it costs about 16 tokens; SKILL.md has 407 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~16
When it runs · the whole SKILL.md, loaded when a task matches
~1.1k

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Auto-check: notes

The automated check noted patterns worth knowing about, such as sudo or a known installer.

  • NoteMentions a .env fileSKILL.md:91
    - Never paste the contents of `.env`, `auth.json`, or any key into the chat or a report.

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

The full file from OnlyTerp/hermes-optimization-guide at commit f865f8a, republished under its MIT licence (© OnlyTerp). 407 words, ~1,079 tokens.

Download SKILL.mdSave it as .claude/skills/hermes-security-review/SKILL.md (or your agent's skills folder).
name
hermes-security-review
description
Review Hermes settings for security risks.
version
1.0.0
author
Terp AI Labs
license
MIT
platforms
linux, macos

Hermes Security Review

Check the settings that decide who can drive this agent, what it may run, and what it can leak. Then report risks by severity, each with a concrete fix.

When to Use

  • Before exposing Hermes on a messaging platform, to other people, or on a server.
  • After adding MCP servers, plugins, or skills from outside sources.
  • As a monthly cron job.

Procedure

Run commands with the terminal tool. Never print secret values. Read key names only. Change nothing without the user's approval.

  1. Approval and safety settings:

    bash
    hermes config get approvals.mode
    hermes config get approvals.cron_mode
    hermes config get approvals.unattended_mode
    hermes config get security.redact_secrets
    hermes config get security.protected_instruction_files
    hermes config get security.protected_instruction_extra_patterns
    hermes config get memory.write_approval
    hermes config get skills.write_approval
    hermes config get security.allow_private_urls
    hermes config get gateway.allow_all_users
    hermes config get terminal.backend
    hermes config get auth.adopt_external_logins
  2. Secrets file permissions. Expect 600:

    bash
    ENV_FILE="$(hermes config env-path)"
    stat -c '%a' "$ENV_FILE" 2>/dev/null || stat -f '%Lp' "$ENV_FILE"
  3. Who can talk to it. List allowlist-related key names in the secrets file, without values, plus pending pairings:

    bash
    grep -oE '^[A-Z_]*(ALLOWED_USERS|ALLOWED_CHATS|ALLOW_ALL_USERS)=' "$(hermes config env-path)"
    hermes pairing list
    hermes gateway status

    For each platform the gateway runs, confirm that an allowlist or DM pairing is in place.

  4. Supply chain:

    bash
    hermes security audit      # OSV.dev scan of the venv, plugin deps, pinned MCP servers
    hermes skills audit        # re-scan hub-installed skills
    hermes plugins list --user
    hermes mcp list
  5. Rate what you found:

    SeverityCondition
    Criticalgateway.allow_all_users: true or any *_ALLOW_ALL_USERS=true on a profile with terminal access. approvals.mode: off on a profile reachable from messaging.
    HighSecrets file readable by other users (not 600). A platform running with no allowlist and no pairing. security.redact_secrets: false. Known vulnerabilities from hermes security audit.
    Mediumapprovals.cron_mode or approvals.unattended_mode not deny. security.protected_instruction_files: false. MCP servers from unknown publishers with broad tool access and no include filter.
    Lowsecurity.allow_private_urls: true on a machine with sensitive internal services. auth.adopt_external_logins: true where Codex CLI or Claude Code logins should stay separate. security.protected_instruction_extra_patterns missing .hermes.md, agents.override.md or *.mdc on a profile that works in repos other people wrote. memory.write_approval or skills.write_approval off on a profile other people can message.
  6. Report findings by severity with the exact fix for each: hermes config set …, chmod 600 …, an allowlist line, or hermes pairing revoke …. Ask which to apply.

Show full SKILL.md (123 more words)Show less

Verification

  • After fixes, re-run steps 1–3. Critical and High findings should be gone.
  • hermes security audit reports no known-vulnerable packages, or only ones the user accepted.

Pitfalls

  • Container terminal backends (for example Docker) skip dangerous-command approval checks by design, because the container is the boundary. That is only safe if the container really is locked down.
  • The protected-file gate covers project files only. The Hermes home is exempt, so the agent can rewrite ~/.hermes/SOUL.md without a prompt, and memory and skills are gated only by their own write_approval settings.
  • Never paste the contents of .env, auth.json, or any key into the chat or a report.
  • hermes security audit queries OSV.dev over the network. Tell the user before running it on an air-gapped host.

© OnlyTerp, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file

Files

Just SKILL.md in skills/hermes-security-review of OnlyTerp/hermes-optimization-guide.

Open the folder on GitHubat commit f865f8a

Compare with similar skills

Hermes Security Review next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.

Hermes Security Review compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Hermes Security Review this skillOnlyTerp/hermes-optimization-guide688—~1.1kAutomated safety check: NotesMIT
Deepsec Documentation Guidevercel-labs/deepsec8.1k—~956Automated safety check: PassApache-2.0
Kubernetes Network Security Auditkubeshark/kubeshark12k—~7.3kAutomated safety check: NotesApache-2.0
Native Dependency Updatemono/SkiaSharp5.6k—~4.1kAutomated safety check: PassMIT
Semgrep Security Scantrailofbits/skills7.5k—~3.7kAutomated safety check: NotesCC-BY-SA-4.0
Skillward AuditFangcun-AI/SkillWard143—~2.9kAutomated safety check: PassCustom licence

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Categories

Questions about Hermes Security Review

What does Hermes Security Review do?

Review Hermes settings for security risks. An agent skill from OnlyTerp/hermes-optimization-guide. Hermes Security Review is an agent skill from OnlyTerp/hermes-optimization-guide. Review Hermes settings for security risks.

When should I use Hermes Security Review?

Hermes Security Review fits situations like: tasks that involve Security review.

How do I install Hermes Security Review in Claude Code?

Run `npx skills add OnlyTerp/hermes-optimization-guide --skill hermes-security-review -a claude-code`. Or copy the skill folder (skills/hermes-security-review in OnlyTerp/hermes-optimization-guide) into .claude/skills/hermes-security-review in your project. Claude Code loads it when a task matches its description.

How do I install Hermes Security Review in Codex?

Run `npx skills add OnlyTerp/hermes-optimization-guide --skill hermes-security-review -a codex`. Or copy the skill folder (skills/hermes-security-review in OnlyTerp/hermes-optimization-guide) into .agents/skills/hermes-security-review in your project. Codex loads it when a task matches its description.

Can I use Hermes Security Review in Cursor, Gemini CLI or GitHub Copilot?

Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add OnlyTerp/hermes-optimization-guide --skill hermes-security-review -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/hermes-security-review, .gemini/skills/hermes-security-review, .github/skills/hermes-security-review and .opencode/skills/hermes-security-review in your project.

What does Hermes Security Review need to run?

SKILL.md names no scripts, command-line tools or credentials: Hermes Security Review is instructions for the agent only. Our summary lists: Docker.

Does Hermes Security Review access the network?

SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.

Is Hermes Security Review safe to install?

Our automated static check of SKILL.md found notes only (mentions a .env file), nothing it rates as a warning. It is not a guarantee. Review the folder before installing.

What licence does Hermes Security Review use?

Hermes Security Review is published under the MIT licence (declared in SKILL.md). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Hermes Security Review use?

About 1.1k tokens (SKILL.md is roughly 4.3k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.

What are the alternatives to Hermes Security Review?

Skills that share tags, products or a category with Hermes Security Review: Deepsec Documentation Guide (vercel-labs/deepsec, 8.1k stars), Kubernetes Network Security Audit (kubeshark/kubeshark, 12k stars), Native Dependency Update (mono/SkiaSharp, 5.6k stars) and Semgrep Security Scan (trailofbits/skills, 7.5k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Hermes Security Review?

OnlyTerp (a GitHub user) maintains it in OnlyTerp/hermes-optimization-guide, which has 688 GitHub stars. The repository holds 4 skills in this directory. The repository was last updated on September 24, 2026.

Source: OnlyTerp/hermes-optimization-guide on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.