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Agent skill

Downstream Link

by NiceEval in NiceEval/NiceEval

Locate and verify a NiceEval downstream consumer, and build and install the current candidate when downstream linking is authorized.

No licenceAuto-check passed

Install Downstream Link

skills CLI
$ npx skills add NiceEval/NiceEval --skill downstream-link -a claude-code

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

GitHub CLI
$ gh skill install NiceEval/NiceEval downstream-link --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/NiceEval/NiceEval.git skills-src && mkdir -p .claude/skills && cp -r skills-src/.agents/skills/downstream-link .claude/skills/downstream-link && 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
downstream-link
GitHub stars
157
Token cost
~499 tokens
SKILL.md length
239 words
Files
2 (incl. references)
Skills in repo
11
Repo updated
First seen
Licence
None found

At a glance

Locate and verify a NiceEval downstream consumer, and build and install the current candidate when downstream linking is authorized.

  • Calls pnpm

What it does

Downstream Link is an agent skill from NiceEval/NiceEval. Locate and verify a NiceEval downstream consumer, and build and install the current candidate when downstream linking is authorized.

Its SKILL.md is about 500 tokens, which your agent loads only when the skill is triggered. The skill folder holds 2 other files, including reference files (for example `references/dogfooding.md`).

The repository describes itself as: build eval for your agent in 10 mins.

Example prompts

  • “/downstream-link”

What it can do on your machine

Read from SKILL.md and the folder at commit 97f06fe. 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

    Shell commands in SKILL.md call:

    • pnpm

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

  • Network

    No URLs in SKILL.md. Its commands use pnpm, which can reach the network depending on how they are called.

    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

Downstream Link loads about 499 tokens when it runs, and up to ~1k if it reads all its reference files. Until then it costs about 37 tokens; SKILL.md has 239 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~37
When it runs · the whole SKILL.md, loaded when a task matches
~499
With references · SKILL.md plus every file in references/, read only if the agent opens them
~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 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

Without a licence we can't republish the file, so here is its outline and opening line. It has 239 words (~499 tokens).

“Read downstream discovery and dogfooding, the target repository's nearest AGENTS or README, and the Repository Tools boundary.”

— opening of SKILL.md by NiceEval
name
downstream-link
metadata.command
pnpm dev:link
metadata.design
docs/engineering/repository-tools/README.md

Read the full SKILL.md on GitHub

Files

SKILL.md and 1 other file (references) in .agents/skills/downstream-link of NiceEval/NiceEval.

  • SKILL.md
  • references/dogfooding.md

Open the folder on GitHubat commit 97f06fe

Compare with similar skills

Downstream Link 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.

Downstream Link compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Downstream Link this skillNiceEval/NiceEval157—~499Automated safety check: PassNone
Internal Linksthedaviddias/Front-End-Checklist74k—~770Automated safety check: PassMIT
External Linksthedaviddias/Front-End-Checklist74k—~773Automated safety check: PassMIT
Invalid Linksthedaviddias/Front-End-Checklist74k—~806Automated safety check: PassMIT
SEO Aeo Internal Linkingsickn33/agentic-awesome-skills47k1 repos~2.3kAutomated safety check: PassMIT
Link Checkerthedaviddias/Front-End-Checklist74k—~408Automated safety check: PassMIT

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Questions about Downstream Link

What does Downstream Link do?

Locate and verify a NiceEval downstream consumer, and build and install the current candidate when downstream linking is authorized. Downstream Link is an agent skill from NiceEval/NiceEval. Locate and verify a NiceEval downstream consumer, and build and install the current candidate when downstream linking is authorized.

How do I install Downstream Link in Claude Code?

Run `npx skills add NiceEval/NiceEval --skill downstream-link -a claude-code`. Or copy the skill folder (.agents/skills/downstream-link in NiceEval/NiceEval) into .claude/skills/downstream-link in your project. Claude Code loads it when a task matches its description.

How do I install Downstream Link in Codex?

Run `npx skills add NiceEval/NiceEval --skill downstream-link -a codex`. Or copy the skill folder (.agents/skills/downstream-link in NiceEval/NiceEval) into .agents/skills/downstream-link in your project. Codex loads it when a task matches its description.

Can I use Downstream Link 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 NiceEval/NiceEval --skill downstream-link -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/downstream-link, .gemini/skills/downstream-link, .github/skills/downstream-link and .opencode/skills/downstream-link in your project.

What does Downstream Link need to run?

Going by SKILL.md and its folder, Downstream Link needs the command-line tools its instructions call (pnpm).

Does Downstream Link 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 Downstream Link 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 Downstream Link use?

No licence was found for Downstream Link or its repository. Without one, default copyright applies: ask the author before reusing or redistributing it.

How many tokens does Downstream Link use?

About 499 tokens (SKILL.md is roughly 2k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full. Its references folder adds about 523 tokens, read only when the agent opens those files.

What are the alternatives to Downstream Link?

Skills that share tags, products or a category with Downstream Link: Internal Links (thedaviddias/Front-End-Checklist, 74k stars), External Links (thedaviddias/Front-End-Checklist, 74k stars), Invalid Links (thedaviddias/Front-End-Checklist, 74k stars) and SEO Aeo Internal Linking (sickn33/agentic-awesome-skills, 47k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Downstream Link?

NiceEval (a GitHub organization) maintains it in NiceEval/NiceEval, which has 157 GitHub stars. The repository holds 11 skills in this directory. The repository was last updated on October 8, 2026.

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