CSS Print
thedaviddias/Front-End-Checklist
A skill your agent uses when reviewing stylesheets, component styles, and responsive behavior related to Include a print stylesheet.
Print the complete, untruncated list of issues from a Millennium Dawn validator, optionally filtered to one category.
CC-BY-SA-4.0Auto-check passed
Install Warnings
$ npx skills add MillenniumDawn/Millennium-Dawn --skill warnings -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install MillenniumDawn/Millennium-Dawn warnings --agent claude-codeProject scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).
$ git clone --depth 1 https://github.com/MillenniumDawn/Millennium-Dawn.git skills-src && mkdir -p .claude/skills && cp -r skills-src/.claude/skills/warnings .claude/skills/warnings && rm -rf skills-srcUse ~/.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/
Install the "warnings" agent skill from https://github.com/MillenniumDawn/Millennium-Dawn/tree/main/.claude/skills/warnings into .claude/skills/warnings/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "warnings", then confirm the skill loads.Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$skill-installer install https://github.com/MillenniumDawn/Millennium-Dawn/tree/main/.claude/skills/warningsType this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.
$ npx skills add MillenniumDawn/Millennium-Dawn --skill warnings -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install MillenniumDawn/Millennium-Dawn warnings --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/MillenniumDawn/Millennium-Dawn.git skills-src && mkdir -p .agents/skills && cp -r skills-src/.claude/skills/warnings .agents/skills/warnings && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "warnings" agent skill from https://github.com/MillenniumDawn/Millennium-Dawn/tree/main/.claude/skills/warnings into .agents/skills/warnings/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "warnings", then confirm the skill loads.Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add MillenniumDawn/Millennium-Dawn --skill warnings -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install MillenniumDawn/Millennium-Dawn warnings --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/MillenniumDawn/Millennium-Dawn.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/.claude/skills/warnings .cursor/skills/warnings && rm -rf skills-srcUse ~/.cursor/skills/ instead of .cursor/skills for a personal install.
Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/
Install the "warnings" agent skill from https://github.com/MillenniumDawn/Millennium-Dawn/tree/main/.claude/skills/warnings into .cursor/skills/warnings/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "warnings", then confirm the skill loads.Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gemini skills install https://github.com/MillenniumDawn/Millennium-Dawn.git --path .claude/skills/warnings--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.
$ npx skills add MillenniumDawn/Millennium-Dawn --skill warnings -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install MillenniumDawn/Millennium-Dawn warnings --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/MillenniumDawn/Millennium-Dawn.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/.claude/skills/warnings .gemini/skills/warnings && rm -rf skills-srcUse ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.
Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/
Install the "warnings" agent skill from https://github.com/MillenniumDawn/Millennium-Dawn/tree/main/.claude/skills/warnings into .gemini/skills/warnings/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "warnings", then confirm the skill loads.Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gh skill install MillenniumDawn/Millennium-Dawn warningsInstalls for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).
$ npx skills add MillenniumDawn/Millennium-Dawn --skill warnings -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/MillenniumDawn/Millennium-Dawn.git skills-src && mkdir -p .github/skills && cp -r skills-src/.claude/skills/warnings .github/skills/warnings && rm -rf skills-srcUse ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.
GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/
Install the "warnings" agent skill from https://github.com/MillenniumDawn/Millennium-Dawn/tree/main/.claude/skills/warnings into .github/skills/warnings/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "warnings", then confirm the skill loads.GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add MillenniumDawn/Millennium-Dawn --skill warnings -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install MillenniumDawn/Millennium-Dawn warnings --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/MillenniumDawn/Millennium-Dawn.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/.claude/skills/warnings .opencode/skills/warnings && rm -rf skills-srcUse ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.
OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/
Install the "warnings" agent skill from https://github.com/MillenniumDawn/Millennium-Dawn/tree/main/.claude/skills/warnings into .opencode/skills/warnings/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "warnings", then confirm the skill loads.OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
Facts
- Skill name
warnings- GitHub stars
- 137
- Token cost
- ~1.3k tokens
- SKILL.md length
- 458 words
- Files
- 1
- Skills in repo
- 24
- Repo updated
- First seen
- Licence
- CC-BY-SA-4.0
At a glance
Print the complete, untruncated list of issues from a Millennium Dawn validator, optionally filtered to one category.
- Works in 4 steps: resolve the validator → run the validator → dump the sidecar → …
- The user asks for all warnings/errors from a validator
- SKILL.md covers Step 1 — resolve the validator, Step 2 — run the validator, Step 3 — dump the sidecar and Step 4 — present
- Calls python
What it does
Warnings is an agent skill from MillenniumDawn/Millennium-Dawn. Print the complete, untruncated list of issues from a Millennium Dawn validator, optionally filtered to one category. Use when the user asks for all warnings/errors from a validator, e.g. "/warnings events unreferenced-triggered-only". Args: validator name, optional category, optional "errors"/"warnings"/"staged".
Its SKILL.md is about 1.3k 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: Millennium Dawn and it's codebase. The licence is CC-BY-SA-4.0.
When your agent uses it
- The user asks for all warnings/errors from a validator
Example prompts
- “/warnings events unreferenced-triggered-only”
- “errors”
- “warnings”
- “/warnings”
Requirements
- Python 3
Workflow steps
4 steps, taken from the step headings in SKILL.md.
What it can do on your machine
Read from SKILL.md and the folder at commit 5821281. 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:
python
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
Warnings loads about 1.3k tokens when it runs. Until then it costs about 81 tokens; SKILL.md has 458 words of instructions outside code blocks.
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
The full file from MillenniumDawn/Millennium-Dawn at commit 5821281, republished under its CC-BY-SA-4.0 licence (© MillenniumDawn). 458 words, ~1,345 tokens.
Download SKILL.mdSave it as
.claude/skills/warnings/SKILL.md (or your agent's skills folder).- name
- warnings
- description
- Print the complete, untruncated list of issues from a Millennium Dawn validator, optionally filtered to one category. Use when the user asks for all warnings/errors from a validator, e.g. "/warnings events unreferenced-triggered-only". Args: validator name, optional category, optional "errors"/"warnings"/"staged".
- disable-model-invocation
- true
- model
- haiku
Print every issue a validator reports, with no truncation.
The validators' console output caps each category at 50 findings and then prints
... and N more (full list in the JSON sidecar). This skill reads the sidecar instead, so
the list is always complete. /validate remains the command for a summarized suite run.
Requested arguments: $ARGUMENTS
Grammar (all optional, order-independent): <validator> [category] [errors|warnings] [staged]
Step 1 — resolve the validator
Map the name to tools/validation/validate_<name>.py, converting - to _. Accept
events, validate_events, validate_events.py, and focus-tree/focus_tree alike.
Valid names:
agency-upgrades ai-equipment ai-navy ai-roles cosmetic-tags decisions defines
events factions file-paths focus-tree gfx-references history ideas localisation
mios mod-descriptors modifiers on-actions oob-units scripted-gui
scripted-localisation scripted-params set-variables simplifications style
unused-scripted unused-textures variablesIf the arguments name no validator, call AskUserQuestion before running anything.
Offer: events, focus-tree, decisions, ideas as options, plus
"All validators (full dump)". The automatic "Other" choice covers the rest of the list.
Never guess a validator.
If the name is not in the list, print the list and stop. Run nothing.
Step 2 — run the validator
One validator (append --staged when the staged token is present):
python tools/validation/validate_<name>.py --path . --no-color -o "<scratchpad>/warnings-<name>.txt"The run writes warnings-<name>.json alongside the .txt. That sidecar is the input for
step 3 — it holds every finding, uncapped.
gfx-references skips its unused-sprite check unless --report-unused is passed. Append
that flag when the requested category is unused-sprite, unused-sprite-case,
duplicate-sprite or case-variant-sprite. For the latter three, also set
MD_GFX_HIDE_UNUSED=1 so the orphan warnings stay out of the report.
All validators:
python tools/validation/run_all_validators.py --path . --no-color --format json -o "<scratchpad>/warnings-all.json"Suite entries carry an extra validator field; single-validator entries do not.
These scans take minutes. Do not add a timeout below 600000.
Step 3 — dump the sidecar
Pass the category and severity filters as arguments, empty string for "no filter". Severity
is error when the errors token is present, warning when warnings is present, empty
otherwise (both).
python - "<json path>" "<category or empty>" "<severity or empty>" <<'PY'
import json, sys
p, cat, sev = sys.argv[1], sys.argv[2], sys.argv[3]
data = json.load(open(p, encoding="utf-8"))
issues = data["issues"] if isinstance(data, dict) else data
if cat: issues = [i for i in issues if i.get("category") == cat]
if sev: issues = [i for i in issues if i.get("severity") == sev]
print(f"TOTAL {len(issues)}")
for n, i in enumerate(issues, 1):
loc = i.get("file", "")
if loc and i.get("line"): loc += f":{i['line']}"
tag = "E" if i.get("severity") == "error" else "W"
print(f"{n}. [{tag}] " + (f"{loc} - " if loc else "") + i.get("message", ""))
PYWhen no category was given, get the index with the same file:
python - "<json path>" <<'PY'
import collections, json, sys
data = json.load(open(sys.argv[1], encoding="utf-8"))
issues = data["issues"] if isinstance(data, dict) else data
c = collections.Counter((i.get("category", "?"), i.get("severity", "?")) for i in issues)
agg = collections.defaultdict(lambda: [0, 0])
for (cat, sev), n in c.items(): agg[cat][0 if sev == "error" else 1] += n
for cat, (e, w) in sorted(agg.items(), key=lambda kv: -sum(kv[1])):
print(f"{sum((e, w)):6d} {e:5d}E {w:5d}W {cat}")
PYShow full SKILL.md (178 more words)Show less
Step 4 — present
Copy the command's stdout through verbatim inside one fenced block.
- Lead with the total and which validator/category it came from, and name the current branch.
- Category given → the flat numbered list, nothing else.
- No category → the index first, then the full list beneath it.
- Never truncate, summarize, sample, re-order, or re-word a line, and never write "and N more". Removing the 50-cap is the entire purpose of this skill. A long list stays long.
Then state these caveats:
- A warning is not automatically a bug. Reference-scanning categories such as
unreferenced-triggered-onlyonly grep.txtundercommon/,events/, andhistory/, so an event fired from a.gui, a scripted GUI, or an unresolved interpolated ID reads as unreferenced. Each entry needs a look before anything is deleted. - Counts drift with the worktree, since the scans re-read the working tree on every run. Report the count from the run just performed; never reuse a number from earlier in the conversation.
- Say so explicitly when
--stagedwas applied, so a short list is not mistaken for a clean repo.
© MillenniumDawn, CC-BY-SA-4.0. 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/warnings of MillenniumDawn/Millennium-Dawn.
Open the folder on GitHubat commit 5821281
Compare with similar skills
Warnings 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.
| Skill | Stars | Used in | Tokens | Auto-check | Licence | Repo updated |
|---|---|---|---|---|---|---|
| Warnings this skillMillenniumDawn/Millennium-Dawn | 137 | — | ~1.3k | Automated safety check: Pass | CC-BY-SA-4.0 | |
| CSS Printthedaviddias/Front-End-Checklist | 74k | — | ~422 | Automated safety check: Pass | MIT | |
| Brand Kit Print Collateralsickn33/agentic-awesome-skills | 47k | 1 repos | ~6.4k | Automated safety check: Pass | MIT | |
| Adding Ingestion WarningsPostHog/posthog | 40k | — | ~3.7k | Automated safety check: Pass | Custom licence | |
| Resolving Ingestion WarningsPostHog/posthog | 40k | — | ~7k | Automated safety check: Pass | Custom licence | |
| PrintfulAnil-matcha/awesome-muse-connectors | 1.3k | — | ~628 | Automated safety check: Pass | MIT |
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Read Printful products and orders, create orders and mockups.
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Questions about Warnings
What does Warnings do?
Print the complete, untruncated list of issues from a Millennium Dawn validator, optionally filtered to one category. Warnings is an agent skill from MillenniumDawn/Millennium-Dawn. Print the complete, untruncated list of issues from a Millennium Dawn validator, optionally filtered to one category.
When should I use Warnings?
Warnings fits situations like: the user asks for all warnings/errors from a validator.
How do I install Warnings in Claude Code?
Run `npx skills add MillenniumDawn/Millennium-Dawn --skill warnings -a claude-code`. Or copy the skill folder (.claude/skills/warnings in MillenniumDawn/Millennium-Dawn) into .claude/skills/warnings in your project. Claude Code loads it when a task matches its description.
How do I install Warnings in Codex?
Run `npx skills add MillenniumDawn/Millennium-Dawn --skill warnings -a codex`. Or copy the skill folder (.claude/skills/warnings in MillenniumDawn/Millennium-Dawn) into .agents/skills/warnings in your project. Codex loads it when a task matches its description.
Can I use Warnings 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 MillenniumDawn/Millennium-Dawn --skill warnings -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/warnings, .gemini/skills/warnings, .github/skills/warnings and .opencode/skills/warnings in your project.
What does Warnings need to run?
Going by SKILL.md and its folder, Warnings needs the command-line tools its instructions call (python). Our summary lists: Python 3.
Does Warnings 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 Warnings 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 Warnings use?
Warnings is published under the CC-BY-SA-4.0 licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.
How many tokens does Warnings use?
About 1.3k tokens (SKILL.md is roughly 5.4k 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 Warnings?
Skills that share tags, products or a category with Warnings: CSS Print (thedaviddias/Front-End-Checklist, 74k stars), Brand Kit Print Collateral (sickn33/agentic-awesome-skills, 47k stars), Adding Ingestion Warnings (PostHog/posthog, 40k stars) and Resolving Ingestion Warnings (PostHog/posthog, 40k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Warnings?
MillenniumDawn (a GitHub organization) maintains it in MillenniumDawn/Millennium-Dawn, which has 137 GitHub stars. The repository holds 24 skills in this directory. The repository was last updated on October 8, 2026.
Source: MillenniumDawn/Millennium-Dawn on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.