td: Skill for Claude Code

.claude/skills/td-integration-test/SKILL.md

td-integration-test is a skill for Claude Code from marcus/td. It costs 86 tokens per session (1,245 once invoked), scanned A, original, MIT.

A guide for writing integration tests for the td-sync admin API, using a test harness with a real HTTP server and isolated temporary databases. It covers endpoints for servers, users, projects, events, snapshots, CORS, and authentication.

In plain words
What is it for?
Use it to add or repair Go integration tests for admin API endpoints, including authenticated requests and prepared test data.
Why use it?
It gives tests a repeatable environment that does not depend on a shared database or a manually running server. This helps verify complete request and response behaviour.

Skill for Claude Code

Written for Claude Code: installed under .claude/.

This is marcus/td's own configuration. It tells Claude Code how to work on td 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 td configures →

View source ↗ marcus/td
Reuse

Borrowing it

Nothing to install: this file belongs to marcus/td. 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/marcus/td/main/.claude/skills/td-integration-test/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/marcus/td

Made for: Claude Code.

Wrote this? Show the measurements

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Per session 86 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,245 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe. Third-party audits
  • NVIDIA SkillSpector pass 7 Sept 2026
How audits are shown
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 $0.00086 $0.01245
Opus 5.5 $0.00034 $0.00498
Sonnet 5.5 $0.00017 $0.00249
Haiku 4.5 $0.00009 $0.00125

Measured 2mo ago against content hash 02e667b33712, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

td-integration-test scanned grade A with 0 findings 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 2mo 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.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

.claude/skills/td-integration-test/SKILL.md · 107 lines

How it starts

The opening of the file, as written. The whole thing — 107 lines — stays where its author put it; the contents beside it link to each section on GitHub.

td-sync Admin API Integration Tests

Write integration tests in internal/api/admin_integration_test.go using the harness in internal/api/testharness_test.go. Tests run against a real HTTP server on a random port with isolated temp databases.

Quick Start Pattern

func TestIntegration_DescriptiveName(t *testing.T) {
    t.Parallel()
    h := newTestHarness(t)
    state := h.Build().
        WithUser("[email protected]").
        WithAdmin("[email protected]", "admin:read:server,sync").
        WithProject("proj1", "[email protected]").
        WithEvents("proj1", "[email protected]", 5).
        Done()

    token := state.AdminToken("[email protected]")
    pid := state.ProjectID("proj1")

    var resp adminEventsResponse
    h.DoJSON("GET", fmt.Sprintf("/v1/admin/projects/%s/events", pid), token, nil, &resp)

    if len(resp.Data) != 5 {
        t.Fatalf("expected 5 events, got %d", len(resp.Data))
    }
}

Harness API

See references/harness-api.md for the complete API reference with all method signatures and detailed usage notes.

Core

  • newTestHarness(t, ...func(*Config)) *TestHarness -- real HTTP server, isolated DB, auto-cleanup
  • h.Do(method, path, token, body) *http.Response -- real HTTP request (caller closes body)
  • h.DoJSON(method, path, token, body, &out) *http.Response -- request + JSON decode (fatals on 4xx/5xx)

State Builder

h.Build().
    WithUser(email).                          // sync-scoped key
    WithAdmin(email, scopes).                 // admin key with scopes
    WithProject(name, ownerEmail).            // via API (owner must exist)
    WithMember(projectName, email, role).     // "owner"/"writer"/"reader"
    WithEvents(projectName, userEmail, count).// cycles issues/logs/comments
    WithSnapshot(projectName).                // triggers snapshot build
    WithAuthEvents(count).                    // inserts directly to DB
    WithRateLimitEvents(count).               // inserts directly to DB
    Done() // -> *TestState

Read the full file on GitHub · 107 lines

Files

What ships with it

1 file beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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. 2mo ago First seen · 107 lines · 86 tokens per session scan A 02e667b33712

Subscribe to this mod's changes

td-integration-test is a skill published in the GitHub repository marcus/td (255 stars, last pushed 10d ago), licensed MIT. It adds 86 tokens to every session and 1,245 once invoked, about $0.0003 per session on Opus 5.5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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