# Pinned Trial Method: the trial record checker (free sample)

> The read-only checker and a clean example record from Pinned Trial Method. Fill in a record after any hands-on test of a new skill or repo and see what it is missing: the pinned commit, sandbox proof, an unchanged target, a leak scan or a person's sign-off.

- URL: https://paperchasewebb.ai/bots/marketplace/items/pinned-trial-method-trial-record-checker-free-sample/
- Type: Prompt pack
- Category: Vibe coding
- By: PaperChaseWebb
- Works with: Claude Code, Codex, Grok Bot, Hermes (named in the listing); One Python script and one JSON example. Tested on Linux
- Price: Free USD
- Difficulty: Beginner
- Setup time: 5 min
- Time to result: About five minutes
- Format: Markdown (.md) file, pinned-trial-method-trial-record-checker-free-sample.md
- Version: 1.0, updated 2026-11-03
- License: Personal and commercial use.

## What you end up with

You find the holes in a tool trial before anyone acts on it.

## What you get

- trial_check.py: 21 error checks and 2 warnings, read-only
- A clean example record
- One prompt for your agent

## Who it is for

Anyone who wants a quick check on a tool trial write-up.

## Tools needed

- Python 3.8 or newer: the record checker; standard library only
- You need: Python 3.8 or newer

Cost to run: Free.

## Sample prompt: Check a trial (Grok Bot, Claude Code, Codex, Hermes)

```
Run python3 trial_check.py trial.json and explain each finding in one line. Do not fill owner_approval.
```

The script and the example are in the file.

## Free preview of pinned-trial-method-trial-record-checker-free-sample.md

````markdown
# Pinned Trial Method: the trial checker (free sample)

By PaperChaseWebb Inc. Works with Grok Bot, Claude Code, Codex and Hermes.

After any hands-on test of a new skill or repo, fill in a trial record and run:

    python3 trial_check.py trial.json

It fails a record with no pinned commit, no sandbox proof, a target that changed, a leaked key, or an adoption nobody signed. Standard library only. It only reads the file. Exit 0 means clean, 1 means errors, 2 means it could not read the record.

Save the two files below, then run it on the example to see a clean result. Change the commit to `main` and run it again to see T02.

The full kit ($24) adds the sandbox script with its four probes, the folder hash, the leak scan, agent rules for all four harnesses, a blank template and 24 tests.

#### file: desk/trial_check.py
~~~~python
#!/usr/bin/env python3
"""Pinned Trial Method: check a trial record before anyone acts on its verdict.
Usage: python3 trial_check.py trial.json [--strict]
Standard library only. Read-only: it never runs the tool under trial.
Exit 0 = clean, 1 = errors found, 2 = could not read the record."""
import json, re, sys

VERDICTS = {"ADOPT", "ADOPT WITH LIMITS", "HOLD", "REJECT"}
SHA = re.compile(r"^[0-9a-f]{40}$")
HEX64 = re.compile(r"^[0-9a-f]{64}$")
REQUIRED_PROBES = ("network_blocked", "host_read_only", "env_scrubbed", "limits_set")

def check(r):
    E, W = [], []
    def err(code, msg): E.append((code, msg))
    def warn(code, msg): W.append((code, msg)
````

## Test record

- Date: Nov 3, 2026
- What was run: trial_check.py unpacked from the sample file and run on the example; tests/test_trial_check.py on Linux, Python 3.8, 3.9, 3.11, 3.12 and 3.13.
- Result: CLEAN on the example; 7 checker tests passed on all five versions.
- Not run: Everything the full kit does.

Copied from this item's dated test notes. What was not run stays in.

## Worth knowing

- The sample only reads the record. The sandbox script, probes, folder hash, leak scan, agent rules and tests are in the full kit.
- On 2026-11-03 the checker passed its tests on Linux with Python 3.8 to 3.13.

## Questions

**Does it run the tool?** No. It reads one JSON file and prints findings.

**What is in the full kit?** The bubblewrap sandbox script with four probes, the folder hash, the leak scan, the seven-step method, agent rules for all four harnesses and 24 tests. $24.

## How to get it

Free sample. Download it directly at https://paperchasewebb.ai/bots/marketplace/items/pinned-trial-method-trial-record-checker-free-sample/, no signup.

Seller: PaperChaseWebb Inc., mgmt@paperchasewebb.com