Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx agentmods add skills/nklofy/code-agent-skills/api-connector-buildernpx skills add nklofy/code-agent-skills --skill api-connector-buildergit clone --depth 1 https://github.com/nklofy/code-agent-skillsWrote 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.
[](https://agentmods.dev/skills/nklofy/code-agent-skills/api-connector-builder)<a href="https://agentmods.dev/skills/nklofy/code-agent-skills/api-connector-builder"><img src="https://agentmods.dev/badge/skills/nklofy/code-agent-skills/api-connector-builder.svg" alt="Measured on agentmods" height="20"></a>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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5 | $0.00036 | $0.00604 |
| Opus 5 | $0.00018 | $0.00302 |
| Sonnet 5 | $0.00007 | $0.00121 |
| Haiku 4.5 | $0.00004 | $0.00060 |
Grade A, and why
api-connector-builder 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 5d 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.
This is a copy
92% identical to api-connector-builder — 27 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.
How it starts
The opening of the file, as written. The whole thing — 122 lines — stays where its author put it; the contents beside it link to each section on GitHub.
API Connector Builder
Use this when the job is to add a repo-native integration surface, not just a generic HTTP client.
The point is to match the host repository's pattern:
- connector layout
- config schema
- auth model
- error handling
- test style
- registration/discovery wiring
When to Use
- "Build a Jira connector for this project"
- "Add a Slack provider following the existing pattern"
- "Create a new integration for this API"
- "Build a plugin that matches the repo's connector style"
Guardrails
- do not invent a new integration architecture when the repo already has one
- do not start from vendor docs alone; start from existing in-repo connectors first
- do not stop at transport code if the repo expects registry wiring, tests, and docs
- do not cargo-cult old connectors if the repo has a newer current pattern
Workflow
1. Learn the house style
Inspect at least 2 existing connectors/providers and map:
- file layout
- abstraction boundaries
- config model
- retry / pagination conventions
- registry hooks
- test fixtures and naming
2. Narrow the target integration
Define only the surface the repo actually needs:
- auth flow
- key entities
- core read/write operations
- pagination and rate limits
- webhook or polling model
3. Build in repo-native layers
Typical slices:
- config/schema
- client/transport
- mapping layer
- connector/provider entrypoint
- registration
- tests
4. Validate against the source pattern
The new connector should look obvious in the codebase, not imported from a different ecosystem.
Reference Shapes
Provider-style
providers/
existing_provider/
__init__.py
provider.py
config.py
Connector-style
integrations/
existing/
client.py
models.py
connector.py
TypeScript plugin-style
src/integrations/
existing/
index.ts
client.ts
types.ts
test.ts
Quality Checklist
- matches an existing in-repo integration pattern
- config validation exists
- auth and error handling are explicit
- pagination/retry behavior follows repo norms
- registry/discovery wiring is complete
- tests mirror the host repo's style
- docs/examples are updated if expected by the repo
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.
- 5d ago First seen · 122 lines · 36 tokens per session scan A 3887da5d7268
api-connector-builder is a skill published in the GitHub repository nklofy/code-agent-skills (18 stars, last pushed 2mo ago), licensed Apache-2.0. It adds 36 tokens to every session and 604 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 0 findings. It is 92% identical to api-connector-builder, differing in 27 lines, and is treated as a copy.
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