Agent skill

Source Credibility Evaluation Protocol

by GarethManning in GarethManning/education-agent-skills

Design a source evaluation protocol using lateral reading and credibility checks for digital information.

Custom licenceAuto-check passed

Install Source Credibility Evaluation Protocol

skills CLI
$ npx skills add GarethManning/education-agent-skills --skill source-credibility-evaluation-protocol -a claude-code

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

GitHub CLI
$ gh skill install GarethManning/education-agent-skills source-credibility-evaluation-protocol --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/GarethManning/education-agent-skills.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/literacy-critical-thinking/source-credibility-evaluation-protocol .claude/skills/source-credibility-evaluation-protocol && 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
source-credibility-evaluation-protocol
GitHub stars
835
Token cost
~5.7k tokens
SKILL.md length
2,068 words
Files
1
Skills in repo
142
Repo updated
First seen
Licence
Custom licence

At a glance

Design a source evaluation protocol using lateral reading and credibility checks for digital information.

  • Works in 3 steps: Search: "[organisation name]" — read the… → Search: "[organisation name] funding" or… → Search: "[author name] credentials" — is…
  • Students need to evaluate websites
  • SKILL.md covers What This Skill Does, Evidence Foundation, Input Schema and Prompt, plus 3 more sections
  • Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md

What it does

Source Credibility Evaluation Protocol is an agent skill from GarethManning/education-agent-skills. Design a source evaluation protocol using lateral reading and credibility checks for digital information. Use when students need to evaluate websites, online sources, or social media claims.

Its SKILL.md is about 5.7k tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.

The repository describes itself as: 165 evidence-grounded AI skills for teachers, school leaders and EdTech builders—pedagogy, learning science, curriculum, assessment and regeneration. Claude, Codex and Hermes.

When your agent uses it

  • Students need to evaluate websites
  • Social media claims

Example prompts

  • “/source-credibility-evaluation-protocol”

Workflow steps

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

  1. Search: "[organisation name]" — read the Wikipedia article (if one exists) and the top 3–4 results. Who are they? What do independent…
  2. Search: "[organisation name] funding" or "[organisation name] backed by" — who funds this organisation? If a website about energy drink…
  3. Search: "[author name] credentials" — is this person a qualified expert in this field? A doctor writing about medicine is different from a…

What it can do on your machine

Read from SKILL.md and the folder at commit 6bbbce4. 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.

    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

Source Credibility Evaluation Protocol loads about 5.7k tokens when it runs. Until then it costs about 57 tokens; SKILL.md has 2,068 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~57
When it runs · the whole SKILL.md, loaded when a task matches
~5.7k

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 passed

The automated check found no risky patterns in SKILL.md.

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

Its licence (Custom licence) doesn't allow us to republish the file, so here is its outline and opening line. It has 2,068 words (~5,658 tokens).

“Generates a structured lateral reading protocol for evaluating a specific type of source — teaching students to check what OTHER sources say about a source rather than analysing the source itself in isolation. This approach directly follows the research finding…”

— opening of SKILL.md by GarethManning, Custom licence
name
source-credibility-evaluation-protocol
disable-model-invocation
false
user-invocable
true
effort
medium
skill_id
literacy-critical-thinking/source-credibility-evaluation-protocol
skill_name
Source Credibility Evaluation Protocol
domain
literacy-critical-thinking
version
1.0
evidence_strength
strong
evidence_sources
Wineburg & McGrew (2017) — Lateral reading: reading less and learning more when evaluating digital information, Wineburg & McGrew (2019) — Lateral reading and…
output_schema.type
object

Read the full SKILL.md on GitHub

Files

Just SKILL.md in skills/literacy-critical-thinking/source-credibility-evaluation-protocol of GarethManning/education-agent-skills.

Open the folder on GitHubat commit 6bbbce4

Compare with similar skills

Source Credibility Evaluation Protocol 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.

Source Credibility Evaluation Protocol compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Source Credibility Evaluation Protocol this skillGarethManning/education-agent-skills835—~5.7kAutomated safety check: PassCustom licence
Manim Video Productionbrowser-use/video-use28k6 repos~3kAutomated safety check: PassMIT
Baoyu URL To Markdownsdyckjq-lab/llm-wiki-skill2.5k3 repos~3.2kAutomated safety check: PassNone
Logseq Review Workflow Evallogseq/logseq45k—~1kAutomated safety check: PassAGPL-3.0
DeepTutor CLIHKUDS/DeepTutor41k—~2.8kAutomated safety check: PassApache-2.0
Zhang Xuefeng Perspectivealchaincyf/zhangxuefeng-skill10k1 repos~2.6kAutomated safety check: PassMIT

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Questions about Source Credibility Evaluation Protocol

What does Source Credibility Evaluation Protocol do?

Design a source evaluation protocol using lateral reading and credibility checks for digital information. Source Credibility Evaluation Protocol is an agent skill from GarethManning/education-agent-skills. Design a source evaluation protocol using lateral reading and credibility checks for digital information.

When should I use Source Credibility Evaluation Protocol?

Source Credibility Evaluation Protocol fits situations like: students need to evaluate websites; social media claims.

How do I install Source Credibility Evaluation Protocol in Claude Code?

Run `npx skills add GarethManning/education-agent-skills --skill source-credibility-evaluation-protocol -a claude-code`. Or copy the skill folder (skills/literacy-critical-thinking/source-credibility-evaluation-protocol in GarethManning/education-agent-skills) into .claude/skills/source-credibility-evaluation-protocol in your project. Claude Code loads it when a task matches its description.

How do I install Source Credibility Evaluation Protocol in Codex?

Run `npx skills add GarethManning/education-agent-skills --skill source-credibility-evaluation-protocol -a codex`. Or copy the skill folder (skills/literacy-critical-thinking/source-credibility-evaluation-protocol in GarethManning/education-agent-skills) into .agents/skills/source-credibility-evaluation-protocol in your project. Codex loads it when a task matches its description.

Can I use Source Credibility Evaluation Protocol 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 GarethManning/education-agent-skills --skill source-credibility-evaluation-protocol -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/source-credibility-evaluation-protocol, .gemini/skills/source-credibility-evaluation-protocol, .github/skills/source-credibility-evaluation-protocol and .opencode/skills/source-credibility-evaluation-protocol in your project.

What does Source Credibility Evaluation Protocol need to run?

SKILL.md names no scripts, command-line tools or credentials: Source Credibility Evaluation Protocol is instructions for the agent only.

Does Source Credibility Evaluation Protocol 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 Source Credibility Evaluation Protocol safe to install?

Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.

What licence does Source Credibility Evaluation Protocol use?

Source Credibility Evaluation Protocol has a licence file (the repository's licence) that doesn't match a standard licence. Read it on GitHub before reusing the skill.

How many tokens does Source Credibility Evaluation Protocol use?

About 5.7k tokens (SKILL.md is roughly 23k 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 Source Credibility Evaluation Protocol?

Skills that share tags, products or a category with Source Credibility Evaluation Protocol: Manim Video Production (browser-use/video-use, 28k stars), Baoyu URL To Markdown (sdyckjq-lab/llm-wiki-skill, 2.5k stars), Logseq Review Workflow Eval (logseq/logseq, 45k stars) and DeepTutor CLI (HKUDS/DeepTutor, 41k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Source Credibility Evaluation Protocol?

GarethManning (a GitHub user) maintains it in GarethManning/education-agent-skills, which has 835 GitHub stars. The repository holds 142 skills in this directory. The repository was last updated on August 28, 2026.

Source: GarethManning/education-agent-skills on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.