Categories › Software Development › Converters, validators, encoders & small utilities
Exact developer checks: email DNS, Supabase RLS, cron, JSON, contrast, time zones, npm/PyPI packages
Remote server: your requests and data go to dev.clawhard.com. Claude Code: claude mcp add --transport http clawhard-dev-tools https://dev.clawhard.com/mcp · Claude app: Settings → Connectors → Add custom connector.
The tools this server listed when we connected to it, in its own words.
stamp_check_email_domain — Use when the user asks why their email goes to spam, whether their domain is set up to send email, or before they launch a newsletter, cold stamp_check_dns_record — Use when you or the user are about to publish or edit an SPF, DMARC or DKIM TXT record, for example after writing a new SPF record that addsdeadbolt_check_supabase_access — Use when you write, review or are about to apply Supabase / PostgreSQL migration SQL (CREATE TABLE, RLS, CREATE POLICY, GRANT, views, SECURIdeadbolt_catalog_query — Use when you need to check a live Supabase project rather than migration files: returns a read-only SQL query that reads table RLS settings,tick_next_runs — Use when you or the user just wrote a cron expression (GitHub Actions, Vercel cron, Cloudflare Cron Triggers, systemd, an agent schedule) antick_matches — Use when you need a yes/no on whether a cron expression would fire at a specific instant in a timezone — for example before shipping a schedmend_repair_json — Use when JSON from an LLM, API, log, config or copy-paste fails to parse (JSON.parse error, "Unexpected token", "Expecting property name"), mend_outline_json — Use when you are about to read a big JSON response, log or export into context, before loading it: returns a compact outline of the structurmend_query_json — Use when you need specific fields from a JSON document without reading all of it: $.users[0].name, $.items[*].id, $.a.b[-1], $.list[1:3], $.swatch_check_contrast — Use when the user asks whether a color combination is readable or accessible, passes WCAG AA or AAA, or has enough contrast (text on a backgswatch_fix_contrast — Use when a color pair fails contrast and the user wants the smallest change that makes it pass, such as "make this gray text accessible withswatch_make_scale — Use when the user asks for a palette, shades, tints, a design-token scale or a Tailwind-style 50 to 950 ramp from a brand color. Returns 11 swatch_check_pairs — Use when the user has a whole design system, theme or stylesheet and wants every text and background pair checked for accessibility in one gmeridian_now — Use when the user asks what time or date it is right now somewhere. Reads the server clock and returns the current time, date, UTC offset, ameridian_convert_time — Use when you need to convert a specific wall-clock time from one place to others, for any date. It uses the real tz database, so daylight sameridian_meeting_slots — Use when you need to schedule a call across several places. Scans the day in 15-minute steps and ranks start times so the most people are inmeridian_zone_info — Use when you need to answer "what is the UTC offset of X", "does X observe daylight saving" and "when do the clocks change". Returns the curdoorman_check_ai_bot_access — Use when the user asks whether their site (or any public site), or a robots.txt they pasted, blocks ChatGPT, Claude, Google AI, Perplexity onotary_check_packages — Use when the user or an agent is about to install or import npm or PyPI packages: before npm install or pip install, when adding lines to paNot tested by KitScout yet. When our harness runs it, pros, cons and the tasks we tried appear here, with the date and evidence.