tell-proof: Skill for Cursor

.cursor/skills/tell-mcp-tools/SKILL.md

tell-mcp-tools is a skill for Cursor from ashishpatill/tell-proof. It costs 44 tokens per session (858 once invoked), scanned A, original, MIT.

A set of tools that lets Cursor, an AI coding editor, use Tell to capture websites, inspect their design, draft changes, apply patches, and verify results.

In plain words
What is it for?
Use it to connect Tell to Cursor, run website diagnosis and redesign commands, apply reviewable changes, and check before-and-after results.
Why use it?
It removes the need to move manually between the editor, a running website, screenshots, and design checks.

Skill for Cursor

Written for Cursor: installed under .cursor/. Also seen: mentions AGENTS.md; mentions OpenCode.

This is ashishpatill/tell-proof's own configuration. It tells Cursor how to work on tell-proof itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything tell-proof configures →

Reuse

Borrowing it

Nothing to install: this file belongs to ashishpatill/tell-proof. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/ashishpatill/tell-proof/master/.cursor/skills/tell-mcp-tools/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/ashishpatill/tell-proof

Made for: Cursor.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for tell-mcp-tools

README.md
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Your own site
<a href="https://agentmods.dev/skills/ashishpatill/tell-proof/tell-mcp-tools"><img src="https://agentmods.dev/badge/skills/ashishpatill/tell-proof/tell-mcp-tools/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for tell-mcp-tools

Your own site · 80×15
<a href="https://agentmods.dev/skills/ashishpatill/tell-proof/tell-mcp-tools"><img src="https://agentmods.dev/badge/skills/ashishpatill/tell-proof/tell-mcp-tools.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 44 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 858 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 1 finding. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00044 $0.00858
Opus 5 $0.00022 $0.00429
Sonnet 5 $0.00009 $0.00172
Haiku 4.5 $0.00004 $0.00086

Measured 7d ago against content hash 4863ada3dc1d, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade A, and why

tell-mcp-tools scanned grade A with 1 finding against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 7d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

curl -s localhost:3000/api/install-info | jq .platforms
.cursor/skills/tell-mcp-tools/SKILL.md · 85 lines

How it starts

The opening of the file, as written. The whole thing — 85 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Tell MCP tools

Scope

  • packages/mcp/src/index.ts — stdio MCP server
  • packages/schemaMcpToolName / InstallInfo / buildInstallInfo
  • .cursor/mcp.json — registers pnpm -F @tell/mcp start
  • GET /api/install-info + tell mcp install <platform> — Connect Agent / platform catalog

Tools

Tool Args Returns
tell_capture { url } CapturePayload
tell_diagnose { url?, reportPath? } TellReport (with id)
tell_redesign { direction, findingId?, reportId? } RedesignProposal
tell_apply { proposalId?, projectRoot? } { patches, instruction }
tell_capture_matrix { url, routes?, compare? } matrix + proof
tell_proof_verify { url, patch, projectRoot?, … } proof verdict
tell_proof_revert { projectRoot?, patch? } { reverted }
tell_design_from_features brief fields DesignSpec (+ HTML)
tell_voice { transcript } direction plan + source
tell_install_info { launch? } InstallInfo
tell_resolve_intent { text, fixtureUrl? } ResolvedIntent

Web-only today: /api/setup/*, share links (see docs/11).

Rules

  1. Parse all inputs/outputs with @tell/schema
  2. tell_apply returns patch text only — never writes files
  3. tell_diagnose without URL/report falls back to fixtures/reports/tell-report.json
  4. Tool names must match MCP_TOOL_NAMES (vitest drift guard)
  5. MCP and web API share the same engine contracts
  6. When sibling tell-design-data exists, tell_diagnose / tell_redesign / tell_proof_verify / tell_design_from_features write raw episodes via the same sink as /api/design (@tell/design-skills/training-data-sink). Missing sink ⇒ no-op. Still eleven tools; no public MCP host.

One-click / install

tell mcp install cursor --project   # upsert .cursor/mcp.json
tell mcp install claude             # claude mcp add-json or .mcp.json
tell mcp install opencode --project
tell mcp install grok --project
tell mcp platforms                  # compatibility table
tell mcp print-config               # all agent snippets + deeplink
curl -s localhost:3000/api/install-info | jq .platforms

Read the full file on GitHub · 85 lines

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 7d ago First seen · 85 lines · 44 tokens per session scan A 4863ada3dc1d

Subscribe to this mod's changes

tell-mcp-tools is a skill published in the GitHub repository ashishpatill/tell-proof (1 stars, last pushed 15d ago), licensed MIT. It adds 44 tokens to every session and 858 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-03.

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