菜单
Post comments on Reddit via old.reddit.com using Playwright MCP. Use when the user wants to comment on a Reddit post, engage in Reddit discussions, or do ghostwritten Reddit engagement. Handles login, navigation, and comment submission. Also trigger when browsing Reddit or upvoting posts.
用 Codex 或 Claude 帮你安装 复制这段 Prompt，粘贴到 Codex、Claude 或其他助手里，让它检查 Skill 页面并帮你完成安装。
基于 SOC 职业分类
Measure and shrink a Haskell/cabal project's build critical path with the ghc-build-stats GHC plugin + analyzer. Use when a build is slow, won't get faster with more cores, or you want to know which modules gate compilation and how to decouple them so more modules compile in parallel.
General Nix language and tooling guidance. Use when writing nix expressions, searching for nix functions or packages, debugging nix builds, or working with nixpkgs overlays, overrides, and shell.nix / default.nix files. Does NOT cover CI — see the ci-nix skill for nix/ci.nix and GitHub Actions.
Complexity canary: use haiku to verify code is understandable in isolation. Use as a standard review step after writing non-trivial code, after completing a feature, or when asked to "dumbify", "simplify for AI", or "review for complexity". Also trigger proactively when you've just written functions with 6+ parameters, 40+ lines, or deep nesting.
Fix CSS styling issues by visually comparing before/after screenshots. Use when the user reports visual alignment, spacing, margin, or padding problems on a web page. Also trigger when asked to fix layout issues, element spacing, or visual inconsistencies in CSS.
Create or update a GitHub pull request. Use when you need to open a PR, when the user asks for a PR, or after completing work that should be submitted as a pull request. Handles stale/closed/merged PRs automatically by checking remote state before acting — never relies on memory of PR state.
Bypass Anubis PoW bot-check pages using Playwright MCP. Trigger when navigating to a site blocked by Anubis ('Making sure you are not a bot!', 'Oh noes!', Anubis challenge page). Also invocable as /anubis-bypass <url>.
| name | reddit-comment |
| description | Post comments on Reddit via old.reddit.com using Playwright MCP. Use when the user wants to comment on a Reddit post, engage in Reddit discussions, or do ghostwritten Reddit engagement. Handles login, navigation, and comment submission. Also trigger when browsing Reddit or upvoting posts. |
| allowed-tools | Bash, Read, WebFetch, mcp__playwright__* |
Post comments on Reddit using old.reddit.com and Playwright MCP browser automation.
REDDIT_USERNAME, REDDIT_PASSWORDLogin is the trickiest part. Follow these steps exactly.
Extra HTTP headers on the browser context cause CORS failures on www.reddit.com static assets. Clear them before login:
// In browser_run_code:
const context = page.context();
await context.setExtraHTTPHeaders({});
await context.clearCookies();
await page.goto('https://www.reddit.com/login/');
The cookie dialog intercepts all clicks. Dismiss it with force-click:
await page.locator('button:has-text("Accept All")').click({ force: true });
Use browser_fill_form or browser_run_code for the login form:
await page.getByRole('textbox', { name: 'Email or username' }).fill(USERNAME);
await page.getByRole('textbox', { name: 'Password' }).fill(PASSWORD);
IMPORTANT: The password must be the literal string value, not a shell
variable reference like ${REDDIT_PASSWORD}. Read it via Bash printenv
first, then paste the value into the Playwright code.
Click the "Log In" button. The page redirects to www.reddit.com on success.
After login, set ONLY the User-Agent header (not Sec-Fetch-* headers, those break CORS on cross-origin requests):
const context = page.context();
await context.setExtraHTTPHeaders({
'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64; rv:128.0) Gecko/20100101 Firefox/128.0'
});
await page.goto('https://old.reddit.com/r/TARGET_SUBREDDIT/');
Without the Firefox User-Agent, old.reddit.com returns 403 "blocked by network security".
await page.goto('https://old.reddit.com/r/SUBREDDIT/comments/POST_ID/...');
The main comment textbox is at the top of the comments section:
// Click to focus, then fill
await page.locator('textarea[name="text"]').click();
await page.locator('textarea[name="text"]').fill('Your comment here');
The pinned/sticky post element at the top of the page often intercepts click events on the save button. Dismiss it first:
const dismissLink = page.locator('a:has-text("Dismiss this pinned window")');
if (await dismissLink.count() > 0) {
await dismissLink.click({ force: true });
}
Use the CSS selector to target the correct save button (not reply buttons on existing comments), and force-click to bypass any remaining overlays:
await page.locator('.commentarea > .usertext button.save').click({ force: true });
After clicking save, take a snapshot. Look for the comment text appearing under the logged-in username with timestamp "zo-even" (Dutch for "just now") or "just now".
To reply to an existing comment rather than the post:
To read post content and comments without navigating, use curl:
curl -s -H "User-Agent: Mozilla/5.0 ..." \
"https://old.reddit.com/r/SUBREDDIT/comments/POST_ID/.json" \
| python3 -c "import sys,json; ..."
This is faster for scanning multiple posts to find interesting ones.
Click the upvote button (aria-label="upvote") on any post or comment.
Must be logged in.
jappeace-sloth account is new. Some
subreddits (e.g. r/ClaudeAI) auto-remove posts from new accounts via
AutoModerator. Comments may still work even when posts are blocked.recaptcha-solving
skill if this happens.api/comment.json CORS
failures. These are benign — the comment still posts successfully despite
the error logs.old.reddit.com/login — it gets 403'd. Always use www.reddit.com/login/.When ghostwriting comments for the user: