What is persona-briefs?

A contract for finding existing test personas and scenarios for an API, browser, or MCP harness, or assembling prompts for a new one. A persona is a defined type of user and intent used to shape a test.

Listing available harness scenarios, selecting scenario IDs, and preparing reviewed persona or adapter prompts.

It helps teams choose the right scenario for a test surface and create new scenario material without bypassing review.

persona-briefs — Skill for Claude Code and Codex by sabbour

Install

Getting it into your agent

It runs from inside its repository, so the clone comes first — what it calls does not travel with the file alone.

Clone the repo

git clone --depth 1 https://github.com/sabbour/agentweaver

agentmods

npx agentmods add skills/sabbour/agentweaver/persona-briefs

Made for: Claude Code, Codex.

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.

README.md

[![agentmods](https://agentmods.dev/badge/skills/sabbour/agentweaver/persona-briefs/github.svg)](https://agentmods.dev/skills/sabbour/agentweaver/persona-briefs)

Your own site

<a href="https://agentmods.dev/skills/sabbour/agentweaver/persona-briefs"><img src="https://agentmods.dev/badge/skills/sabbour/agentweaver/persona-briefs/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.

Your own site · 80×15

<a href="https://agentmods.dev/skills/sabbour/agentweaver/persona-briefs"><img src="https://agentmods.dev/badge/skills/sabbour/agentweaver/persona-briefs.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 0 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 1,292 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.

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.

Model	Per session	Once invoked
Fable 5.1	$0.00000	$0.01292
Opus 5	$0.00000	$0.00646
Sonnet 5	$0.00000	$0.00258
Haiku 4.5	$0.00000	$0.00129

Measured 6d ago against content hash a1c83ca458e4, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade A, and why

persona-briefs 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 6d ago.

The scan reads SKILL.md. This mod also ships 8 executable files (find-similar.mjs, generate-adapter.mjs, generate-core.mjs, …), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

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.

scripts/persona-briefs/SKILL.md · 151 lines

How it starts

The opening of the file, as written. The whole thing — 151 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Harness scenario catalog and generation contract

Use this contract when you need to discover the current built-in scenario/persona catalog for one harness surface, or generate a reviewed new persona core and surface adapter for a new test intent.

Generators in this package are prompt assemblers only. They never call a model, write a persona file, scaffold a harness scenario module, or bypass review.

Before starting, read scripts/harness-shared/learnings.md's scenario-design-note entries — several existing adapters intentionally stop before full completion (a review/confirmation gate), which is by design, not a stuck/broken run.

Retrieve existing scenarios

Run these commands from the repository root:

API surface

List the deterministic built-in API scenario modules:

node scripts/api-harness/run-persona.mjs --list

Output: a stable text list of scenario IDs from scripts/api-harness/scenarios/*.mjs. Use one of those IDs with --scenario <id> when invoking the API harness.

UI surface

List the built-in UI scenario starters:

node scripts/ui-harness/agent-driver-ui/tools.mjs list-scenarios

Output: JSON with surface: "ui", mode: "persona-adapter", and scenarios, the persona IDs that currently have reviewed UI adapters under scripts/persona-briefs/surfaces/*.ui.md. Use one of those IDs with init --persona <id>.

MCP surface

List the built-in MCP scenario starters:

node scripts/mcp-harness/run-persona.mjs --list

Output: JSON with surface: "mcp", mode: "persona-adapter", and scenarios, the persona IDs that currently have reviewed MCP adapters under scripts/persona-briefs/surfaces/*.mcp.md. Drive one of them dynamically with run-persona.mjs (a sub-agent dispatched under scripts/mcp-harness/agent-driver/AGENT.md discovers the live tool menu and decides each call), or run the fixed smoke/mcp-cli-smoke.mjs connectivity/capability tripwire; see scripts/mcp-harness/SKILL.md. The same --list also works from smoke/mcp-cli-smoke.mjs.

Read the full file on GitHub · 151 lines

Files

What ships with it

26 files 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.

6d ago First seen · 151 lines · 0 tokens per session scan A a1c83ca458e4

Subscribe to this mod's changes

persona-briefs is a skill published in the GitHub repository sabbour/agentweaver (5 stars, last pushed today), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 1,292 tokens. 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 2026-09-03.

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persona-briefs