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/prowler-cloud/prowler/jsonapinpx skills add prowler-cloud/prowler --skill jsonapigit clone --depth 1 https://github.com/prowler-cloud/prowlerWhat 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 | $0.00034 | $0.02061 |
| Opus 5 | $0.00017 | $0.01030 |
| Sonnet 5 | $0.00007 | $0.00412 |
| Haiku 4.5 | $0.00003 | $0.00206 |
Grade A, and why
jsonapi 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 2d 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.
How it starts
The opening of the file, as written. The whole thing — 272 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Use With django-drf
This skill focuses on spec compliance. For implementation patterns (ViewSets, Serializers, Filters), use django-drf skill together with this one.
| Skill | Focus |
|---|---|
jsonapi |
What the spec requires (MUST/MUST NOT rules) |
django-drf |
How to implement it in DRF (code patterns) |
When creating/modifying endpoints, invoke BOTH skills.
Before Implementing/Reviewing
ALWAYS validate against the latest spec before creating or modifying endpoints:
Option 1: Context7 MCP (Preferred)
If Context7 MCP is available, query the JSON:API spec directly:
mcp_context7_resolve-library-id(query="jsonapi specification")
mcp_context7_query-docs(libraryId="<resolved-id>", query="[specific topic: relationships, errors, etc.]")
Option 2: WebFetch (Fallback)
If Context7 is not available, fetch from the official spec:
WebFetch(url="https://jsonapi.org/format/", prompt="Extract rules for [specific topic]")
This ensures compliance with the latest JSON:API version, even after spec updates.
Critical Rules (NEVER Break)
Document Structure
- NEVER include both
dataanderrorsin the same response - ALWAYS include at least one of:
data,errors,meta - ALWAYS use
typeandid(string) in resource objects - NEVER include
idwhen creating resources (server generates it)
Content-Type
- ALWAYS use
Content-Type: application/vnd.api+json - ALWAYS use
Accept: application/vnd.api+json - NEVER add parameters to media type without
ext/profile
Resource Objects
- ALWAYS use string for
id(even if UUID) - ALWAYS use lowercase kebab-case for
type - NEVER put
idortypeinsideattributes - NEVER include foreign keys in
attributes- userelationships
Relationships
- ALWAYS include at least one of:
links,data, ormeta - ALWAYS use resource linkage format:
{"type": "...", "id": "..."} - NEVER use raw IDs in relationships - always use linkage objects
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.
- 2d ago First seen · 272 lines · 34 tokens per session scan A 5d29e35cbb58
jsonapi is a skill published in the GitHub repository prowler-cloud/prowler (14,736 stars, last pushed today), licensed Apache-2.0. It adds 34 tokens to every session and 2,061 once invoked, about $0.0002 per session on Opus 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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