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Agent skill

Persona Local Dev Loop

by jeremylongshore in jeremylongshore/tons-of-skills-marketplace

Run a deterministic local Persona sandbox loop with synthetic inquiries, raw webhook fixtures, and replay checks.

MITAuto-check: notesBackend & APIs

Install Persona Local Dev Loop

skills CLI
$ npx skills add jeremylongshore/tons-of-skills-marketplace --skill persona-local-dev-loop -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI
$ gh skill install jeremylongshore/tons-of-skills-marketplace persona-local-dev-loop --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy
$ git clone --depth 1 https://github.com/jeremylongshore/tons-of-skills-marketplace.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/.curated/persona-local-dev-loop .claude/skills/persona-local-dev-loop && rm -rf skills-src

Use ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.

Claude Code skills documentation · loads skills from .claude/skills/

Facts

Skill name
persona-local-dev-loop
GitHub stars
2.8k
Token cost
~1.2k tokens
SKILL.md length
489 words
Files
2 (incl. references)
Skills in repo
3,342
Repo updated
First seen
Licence
MIT

At a glance

Run a deterministic local Persona sandbox loop with synthetic inquiries, raw webhook fixtures, and replay checks.

  • Works in 6 steps: Declare the scenario → Create with an operation key → Exercise the client path → …
  • Developing without production PII
  • SKILL.md covers Overview, Prerequisites, Instructions and Authentication, plus 6 more sections
  • Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md

What it does

Persona Local Dev Loop is an agent skill from jeremylongshore/tons-of-skills-marketplace. Run a deterministic local Persona sandbox loop with synthetic inquiries, raw webhook fixtures, and replay checks. Use when developing without production PII. Trigger with: "develop Persona locally", "test Persona webhook", "mock Persona flow".

Its SKILL.md is about 1.2k tokens, which your agent loads only when the skill is triggered. The skill folder holds 2 other files, including reference files (for example `references/official-docs.md`). Compatibility notes: Requires an authorized Persona environment, current first-party documentation, a reviewed dated API version, and privacy-safe operational evidence.

It sits in Backend & APIs, covering Webhooks. The repository describes itself as: Model-agnostic agent-skills platform with a harness-free canonical layer, verified adapters, and the ccpi package manager. Explore at tonsofskills.com. The licence is MIT.

When your agent uses it

  • Developing without production PII
  • With: develop Persona locally
  • Test Persona webhook
  • Mock Persona flow

Example prompts

  • “develop Persona locally”
  • “test Persona webhook”
  • “mock Persona flow”
  • “/persona-local-dev-loop”

Requirements

  • Compatibility (from SKILL.md): Requires an authorized Persona environment, current first-party documentation, a reviewed dated API version, and privacy-safe operational evidence.
  • Pre-approved tools (allowed-tools): Read, Grep, Write, Edit

Workflow steps

6 steps, taken from the step headings in SKILL.md.

  1. Declare the scenario
  2. Create with an operation key
  3. Exercise the client path
  4. Capture raw webhook bytes
  5. Replay deterministically
  6. Reset without hiding drift

What it can do on your machine

Read from SKILL.md and the folder at commit 80f86df. It shows what the files ask for, not the result of running them.

  • Tool permissions

    Pre-approves these tools, so the agent can use them without asking each time:

    • Read
    • Grep
    • Write
    • Edit

    From allowed-tools in the SKILL.md frontmatter.

  • Runs code

    No scripts in the folder and no shell commands in SKILL.md.

    From the folder's file list and the shell code blocks in SKILL.md.

  • Network

    Links to these hosts (documentation or services it may open):

    • docs.withpersona.com

    From URLs in SKILL.md, links to its own repository left out.

  • Credentials

    Names no API keys, tokens, secrets or passwords.

    From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

  • Compatibility

    Requires an authorized Persona environment, current first-party documentation, a reviewed dated API version, and privacy-safe operational evidence.

    From compatibility in the SKILL.md frontmatter.

Context cost

Persona Local Dev Loop loads about 1.2k tokens when it runs, and up to ~2.1k if it reads all its reference files. Until then it costs about 67 tokens; SKILL.md has 489 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~67
When it runs · the whole SKILL.md, loaded when a task matches
~1.2k
With references · SKILL.md plus every file in references/, read only if the agent opens them
~2.1k

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Auto-check: notes

The automated check noted patterns worth knowing about, such as sudo or a known installer.

  • NoteMentions a .env fileSKILL.md:61
    URL, fixture, console log, or committed `.env` file.

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

The full file from jeremylongshore/tons-of-skills-marketplace at commit 80f86df, republished under its MIT licence (© jeremylongshore). 489 words, ~1,182 tokens.

Download SKILL.mdSave it as .claude/skills/persona-local-dev-loop/SKILL.md (or your agent's skills folder). This skill also uses 1 other file; get the full folder from GitHub.
name
persona-local-dev-loop
description
Run a deterministic local Persona sandbox loop with synthetic inquiries, raw webhook fixtures, and replay checks. Use when developing without production PII. Trigger with: "develop Persona locally", "test Persona webhook", "mock Persona flow".
allowed-tools
Read, Grep, Write, Edit
compatibility
Requires an authorized Persona environment, current first-party documentation, a reviewed dated API version, and privacy-safe operational evidence.
version
2.0.0
argument-hint
[fixture-scenario]
model
inherit
effort
high
license
MIT
author
Jeremy Longshore <jeremy@intentsolutions.io>
tags
saas, persona, local-development, sandbox, webhooks

Deterministic Persona Sandbox and Webhook Loop

Overview

Build the local loop around Persona sandbox behavior and captured contract fixtures, not around calls to production. Sandbox performs no real verification, supports forced pass or fail paths, and incurs no usage charges.

Prerequisites

  • Sandbox-only API key and template
  • HTTPS-capable webhook tunnel or local fixture runner
  • Synthetic identities and a secret-safe fixture directory

Instructions

Step 1: Declare the scenario

Name the template, forced outcome, inquiry state, expected event type, API version, and cleanup disposition.

Step 2: Create with an operation key

Create a sandbox inquiry using a unique Idempotency-Key. Persist IDs separately from synthetic payloads.

Step 3: Exercise the client path

Use the supported sandbox flow to force pass or fail. Do not encode sandbox-only controls into production request code.

Step 4: Capture raw webhook bytes

Save headers and raw body before parsing, redact PII, and preserve duplicate deliveries and deliberately reordered fixtures.

Step 5: Replay deterministically

Verify HMAC against raw bytes, deduplicate by event ID, order business processing by data.attributes.created-at, and assert the terminal local state.

Step 6: Reset without hiding drift

Delete only generated local artifacts through the project’s approved cleanup path; retain the contract fingerprint and test receipt.

Authentication

Use a sandbox bearer key for REST requests and a separate sandbox webhook secret for HMAC verification. Never expose either value in a tunnel URL, fixture, console log, or committed .env file.

Tool Discipline

Use Read and Grep to inspect application configuration, provider documentation, fixtures, schemas, tests, and redacted operational evidence before proposing a change. Use Write or Edit only for an approved implementation, configuration, test, runbook, or redacted receipt. Do not create, resume, approve, decline, redact, rotate, revoke, deploy, or otherwise mutate production Persona resources without explicit operator approval.

Show full SKILL.md (200 more words)Show less

Output

  • Named sandbox scenario and synthetic inquiry receipt
  • Redacted raw webhook fixture set
  • Replay, duplicate, ordering, and terminal-state assertions

Return the environment, resource and event identifiers, API version, template context, source-contract fingerprint, evidence, unresolved risk, rollback state, and final decision without exposing bearer keys, webhook secrets, inquiry session tokens, raw identity documents, or unnecessary PII.

Examples

The government-id-fail scenario creates a sandbox inquiry, forces failure, captures two deliveries of the same event, replays them out of order, and proves exactly one transition to the expected failed state.

Error Handling

FailureResponse
Tunnel receives parsed JSON onlyDisable body transformation and retain the exact raw bytes before JSON parsing.
Fixture signature fails after editingRegenerate the signature from the edited timestamp and raw body; never weaken verification.
Sandbox and production settings divergeRecord the drift and stop promotion until templates, events, and API version are reviewed.

Validation

Verify the result against the linked first-party evidence, the pinned API version, redacted contract fixtures, an expected failure path, and the documented rollback or manual-disposition path. A successful request is not proof of a successful identity decision.

Resources

© jeremylongshore, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file

Files

SKILL.md and 1 other file (references) in skills/.curated/persona-local-dev-loop of jeremylongshore/tons-of-skills-marketplace.

  • SKILL.md
  • references/official-docs.md

Open the folder on GitHubat commit 80f86df

Compare with similar skills

Persona Local Dev Loop next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.

Persona Local Dev Loop compared with similar skills
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Persona Local Dev Loop this skilljeremylongshore/tons-of-skills-marketplace2.8k—~1.2kAutomated safety check: NotesMIT
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Stripe Appsfossasia/eventyay1.7k1 repos~3.6kAutomated safety check: PassApache-2.0
Dingtalk Messageagentscope-ai/ReMe3.6k—~1.6kAutomated safety check: PassApache-2.0
PR Review Provideryansongda/pay5.4k—~2.4kAutomated safety check: PassMIT

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Categories

Questions about Persona Local Dev Loop

What does Persona Local Dev Loop do?

Run a deterministic local Persona sandbox loop with synthetic inquiries, raw webhook fixtures, and replay checks. Persona Local Dev Loop is an agent skill from jeremylongshore/tons-of-skills-marketplace. Run a deterministic local Persona sandbox loop with synthetic inquiries, raw webhook fixtures, and replay checks.

When should I use Persona Local Dev Loop?

Persona Local Dev Loop fits situations like: developing without production PII; with: develop Persona locally; test Persona webhook; mock Persona flow.

How do I install Persona Local Dev Loop in Claude Code?

Run `npx skills add jeremylongshore/tons-of-skills-marketplace --skill persona-local-dev-loop -a claude-code`. Or copy the skill folder (skills/.curated/persona-local-dev-loop in jeremylongshore/tons-of-skills-marketplace) into .claude/skills/persona-local-dev-loop in your project. Claude Code loads it when a task matches its description.

How do I install Persona Local Dev Loop in Codex?

Run `npx skills add jeremylongshore/tons-of-skills-marketplace --skill persona-local-dev-loop -a codex`. Or copy the skill folder (skills/.curated/persona-local-dev-loop in jeremylongshore/tons-of-skills-marketplace) into .agents/skills/persona-local-dev-loop in your project. Codex loads it when a task matches its description.

Can I use Persona Local Dev Loop in Cursor, Gemini CLI or GitHub Copilot?

Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add jeremylongshore/tons-of-skills-marketplace --skill persona-local-dev-loop -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/persona-local-dev-loop, .gemini/skills/persona-local-dev-loop, .github/skills/persona-local-dev-loop and .opencode/skills/persona-local-dev-loop in your project.

What does Persona Local Dev Loop need to run?

SKILL.md names no scripts, command-line tools or credentials: Persona Local Dev Loop is instructions for the agent only. Its frontmatter pre-approves these tools: Read, Grep, Write, Edit. Compatibility (from SKILL.md): Requires an authorized Persona environment, current first-party documentation, a reviewed dated API version, and privacy-safe operational evidence..

Does Persona Local Dev Loop access the network?

SKILL.md names 1 domain. As links in the text: docs.withpersona.com. This is read from the text; nothing was executed.

Is Persona Local Dev Loop safe to install?

Our automated static check of SKILL.md found notes only (mentions a .env file), nothing it rates as a warning. It is not a guarantee. Review the folder before installing.

What licence does Persona Local Dev Loop use?

Persona Local Dev Loop is published under the MIT licence (declared in SKILL.md). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Persona Local Dev Loop use?

About 1.2k tokens (SKILL.md is roughly 4.7k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full. Its references folder adds about 888 tokens, read only when the agent opens those files.

What are the alternatives to Persona Local Dev Loop?

Skills that share tags, products or a category with Persona Local Dev Loop: Novu Design Workflow (novuhq/novu, 40k stars), Golive (mikehasa/golive-skill, 1.2k stars), Stripe Apps (fossasia/eventyay, 1.7k stars) and Dingtalk Message (agentscope-ai/ReMe, 3.6k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Persona Local Dev Loop?

jeremylongshore (a GitHub user) maintains it in jeremylongshore/tons-of-skills-marketplace, which has 2,825 GitHub stars. The repository holds 3,342 skills in this directory. The repository was last updated on October 9, 2026.

Source: jeremylongshore/tons-of-skills-marketplace on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.