Exact developer checks: email DNS, Supabase RLS, cron, JSON, contrast, time zones, npm/PyPI packages
Connect Remote server
claude mcp add --transport http dev https://dev.clawhard.com/mcp
{
"mcpServers": {
"dev": {
"url": "https://dev.clawhard.com/mcp"
}
}
}
{
"servers": {
"dev": {
"type": "http",
"url": "https://dev.clawhard.com/mcp"
}
}
}
Settings > Connectors > Add custom connector
URL: https://dev.clawhard.com/mcp
Tools 19 found in our last check
stamp_check_email_domainUse 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 outreach, transactional email or a new sending service, e.g. "why are my emails going to spam?", "is my SPF/DKIM/DMARC right?", "do I meet…
stamp_check_dns_recordUse 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 adds a sending service, or when the user pastes a record and asks "is this right?". Detects the record type. SPF: syntax per RFC 7208, every in…
deadbolt_check_supabase_accessUse when you write, review or are about to apply Supabase / PostgreSQL migration SQL (CREATE TABLE, RLS, CREATE POLICY, GRANT, views, SECURITY DEFINER functions, storage buckets), or when a user asks whether their Supabase data is exposed, whether RLS is set up right, or why a q…
deadbolt_catalog_queryUse when you need to check a live Supabase project rather than migration files: returns a read-only SQL query that reads table RLS settings, grants for anon and authenticated, policies, SECURITY DEFINER functions and storage buckets (never row data) and returns one JSON value. R…
tick_next_runsUse when you or the user just wrote a cron expression (GitHub Actions, Vercel cron, Cloudflare Cron Triggers, systemd, an agent schedule) and need its next fire times. Pass the expression and an IANA timezone (default UTC). Returns the next N runs as local wall times and UTC ISO…
tick_matchesUse 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 schedule that crosses a DST transition, or to verify a single expected fire. Example: {"expression":"0 9 * * 1-5","timezone":"America/New_York",…
mend_repair_jsonUse when JSON from an LLM, API, log, config or copy-paste fails to parse (JSON.parse error, "Unexpected token", "Expecting property name"), or the user pastes JSON with trailing commas, single quotes, unquoted keys, comments, Python True/False/None, NaN, missing commas or bracke…
mend_outline_jsonUse when you are about to read a big JSON response, log or export into context, before loading it: returns a compact outline of the structure (keys, types, array lengths, one example per repeated shape) so you can plan a query without spending tokens on the whole document. Repai…
mend_query_jsonUse 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], $..email (recursive). Returns each match with its exact path, type and value. Repairs the JSON first if needed, so broken input still works.…
swatch_check_contrastUse when the user asks whether a color combination is readable or accessible, passes WCAG AA or AAA, or has enough contrast (text on a background, button, badge, link color), or what a color is in another format. Returns the exact contrast ratio, pass or fail for normal text, la…
swatch_fix_contrastUse when a color pair fails contrast and the user wants the smallest change that makes it pass, such as "make this gray text accessible without changing the look". Returns the closest text color on that background that reaches the target (AA, AAA, AA-large or ui), and separately…
swatch_make_scaleUse 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 steps that keep the hue, with the hex, contrast on white and on black, and the best text color for each step. Example: {"color": "#ff5a1f",…
swatch_check_pairsUse when the user has a whole design system, theme or stylesheet and wants every text and background pair checked for accessibility in one go. Takes up to 50 pairs and returns the ratio and AA and AAA results for each, with a count of failures. Example: {"pairs": [{"foreground":…
meridian_nowUse 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, abbreviation and daylight saving status for each place. Places can be cities ("Tokyo"), IANA zones ("Europe/Paris"), abbreviations ("PST") o…
meridian_convert_timeUse 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 saving is right for that exact date (the US and Europe switch on different weeks), and it warns when the time does not exist (spring forward)…
meridian_meeting_slotsUse 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 inside working hours and nobody is at night, using each place's real offset and DST for that date. Returns up to 5 slots with each person's l…
meridian_zone_infoUse 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 current offset and abbreviation, whether the place observes DST, every clock change in the year with exact local before and after times, and t…
doorman_check_ai_bot_accessUse when the user asks whether their site (or any public site), or a robots.txt they pasted, blocks ChatGPT, Claude, Google AI, Perplexity or other AI crawlers, whether AI can read or train on their content, or why AI search does not mention their site. Fetches the live robots.t…
notary_check_packagesUse 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 package.json or requirements.txt, or when a package name came from an AI answer, a tutorial or memory and may be invented. Looks each name up…
Details
| Endpoint | https://dev.clawhard.com/mcp (Streamable HTTP) |
| First published | 9 Nov 2026 |
| Last updated | 9 Nov 2026 |
| Registry name | com.clawhard/dev |
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