Update Web Assets

What it does

When your agent uses it

• Bumping a vendored web library
• Adding a new one
• Investigating whether a rendering bug comes from a stale pin

Example prompts

• “/update-web-assets”

Requirements

• Pre-approved tools (allowed-tools): Bash, Read, Edit, Write, Glob, Grep, WebFetch, AskUserQuestion

Workflow steps

5 steps, taken from the step headings in SKILL.md.

1. 1Establish what is stale
2. 2Decide, per asset
3. 3Apply
4. 4Gates
5. 5Report, and name the device check

What it can do on your machine

Read from SKILL.md and the folder at commit bf2a609. It shows what the files ask for, not the result of running them.

• Tool permissions

  Pre-approves these tools, so the agent can use them without asking each time:

  • Bash
  • Read
  • Edit
  • Write
  • Glob
  • Grep
  • WebFetch
  • AskUserQuestion

  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

Update Web Assets loads about 1.8k tokens when it runs. Until then it costs about 139 tokens; SKILL.md has 867 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it

~139

When it runs · the whole SKILL.md, loaded when a task matches

~1.8k

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

• NotePre-approves every shell command (allowed-tools: Bash)SKILL.md

  allowed-tools: Bash, Read, Edit, Write, Glob, Grep, WebFetch, AskUserQuestion

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 garfiec/Librechat-Mobile at commit bf2a609, republished under its MIT licence (© garfiec). 867 words, ~1,800 tokens.

name

update-web-assets

description

Update the third-party JavaScript vendored into the app for the artifact, diagram, and math WebViews (KaTeX, mermaid, marked, highlight.js, Tailwind, Babel, React). Checks what is outdated, reads each pin's rationale before proposing a bump, re-downloads from the official source, verifies the lock, and runs the gates. Ends by naming what must be checked on a device, because a broken WebView asset fails silently. Use when bumping a vendored web library, adding a new one, or investigating whether a rendering bug comes from a stale pin.

allowed-tools

Bash, Read, Edit, Write, Glob, Grep, WebFetch, AskUserQuestion

argument-hint

[asset-id ...] (optional, defaults to checking all of them)

scripts/vendor-web-assets.py --check      # tree matches the lock (should be clean first)
scripts/vendor-web-assets.py --outdated   # what npm has that we don't
scripts/vendor-web-assets.py --list       # what each asset is for, and who uses it

scripts/vendor-web-assets.py --bump <id> <version>

scripts/vendor-web-assets.py --check
./gradlew :feature:chat:testDebugUnitTest --tests '*VendoredAssetReferenceTest*' \
                                          --tests '*ReactArtifactRenderTest*'
./gradlew :feature:chat:detekt
./gradlew :app:assembleDebug

© garfiec, 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 .claude/skills/update-web-assets of garfiec/Librechat-Mobile.

Open the folder on GitHubat commit bf2a609