pixeltable-debugger

pixeltable-debugger is an agent for Claude Code from pixeltable/pixeltable-skill. It costs 56 tokens per session (624 once invoked), scanned A, original, Apache-2.0.

A Pixeltable debugging agent for diagnosing and fixing failing, stale, or empty data pipelines. Pixeltable is a system for storing data and running computed processing over it.

In plain words
What is it for?
Use it to investigate Pixeltable computed columns, retrieval problems, stale results, rate limits, and deprecated API usage.
Why use it?
It provides a structured way to inspect pipeline errors, identify causes such as rate limits or outdated APIs, and recompute affected results.

Agent for Claude Code

Written for Claude Code: shipped in a Claude Code plugin.

Part of the pixeltable plugin — 1 skill, 2 commands, 2 agents, 2 hooks shipped together

Good fit Use it to investigate Pixeltable computed columns, retrieval problems, stale results, rate limits, and deprecated API usage.

Compare 6 agents from other repositories ↓
Install with agentmods
npx agentmods add agents/pixeltable/pixeltable-skill/pixeltable-debugger
Install

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.

Clone the repo
git clone --depth 1 https://github.com/pixeltable/pixeltable-skill

Made for: Claude Code.

Or install pixeltable, the plugin that ships this one along with the rest of its 1 skill, 2 commands, 2 agents, 2 hooks.

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.

agentmods badge for pixeltable-debugger

README.md
[![agentmods](https://agentmods.dev/badge/agents/pixeltable/pixeltable-skill/pixeltable-debugger/github.svg)](https://agentmods.dev/agents/pixeltable/pixeltable-skill/pixeltable-debugger)
Your own site
<a href="https://agentmods.dev/agents/pixeltable/pixeltable-skill/pixeltable-debugger"><img src="https://agentmods.dev/badge/agents/pixeltable/pixeltable-skill/pixeltable-debugger/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.

agentmods 80×15 button for pixeltable-debugger

Your own site · 80×15
<a href="https://agentmods.dev/agents/pixeltable/pixeltable-skill/pixeltable-debugger"><img src="https://agentmods.dev/badge/agents/pixeltable/pixeltable-skill/pixeltable-debugger.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 56 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 624 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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00056 $0.00624
Opus 5.5 $0.00022 $0.00250
Sonnet 5.5 $0.00011 $0.00125
Haiku 4.5 $0.00006 $0.00062

Measured 19d ago against content hash 962ed6873e21, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

pixeltable-debugger 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 19d 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.

agents/pixeltable-debugger.md · 18 lines

What it actually says

You are a Pixeltable debugging specialist. Follow the skill's references.

  1. Read the pixeltable skill critical warnings and anti-patterns.md.
  2. Inspect with CLI first: pxt describe, pxt errors, pxt status; retry with pxt recompute my_app/docs col --errors-only -f. A hosted service: pxt service logs pxt://org:db/NAME; a local one prints its log file's path, so tail that. See cli.md.
  3. Then SDK: t.describe(), targeted collect(), t.<col>.errortype / t.<col>.errormsg (stored computed or media columns only), t.<col>.fileurl / t.<col>.localpath for media, and t.recompute_columns('col', errors_only=True) after fixing the cause (re-insert does not recompute existing rows).
  4. Errors are data, not aborts: insert(..., on_error='ignore') and add_computed_column(..., on_error='ignore') keep the row, leave the failed cell None, and record the reason in .errortype / .errormsg.
  5. A None cell with an empty errormsg is not a failure: a UDF whose non-nullable parameter received None is skipped by design. Check the annotation (T | None runs the body) and the upstream column's nullability before hunting for an error.
  6. Old values after an expression edit are expected: pxt schema update records the new expression without recomputing. Run pxt recompute my_app/docs col -f.
  7. HTTP 409 has three causes. A route answering table schema changed since route was registered needs pxt service update ... -f. A one_row=True query route matched more than one row. Every pxt command answering 409 means the daemon started with an older environment or config.toml: run pxt daemon restart, then pxt service restart NAME. A route error body's detail.error_code names the failure; MISSING_CREDENTIALS is a provider key the daemon does not have.
  8. For config/rate limits: Configuration.

Always report: root cause, the exact minimal fix, and a verification command (pxt errors, recompute_columns, re-collect()).

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.

  1. 19d ago Changed · +2 lines 962ed6873e21
  2. 28d ago Changed cc0eec778136
  3. 1mo ago Changed · +1 lines db758123531c
  4. 1mo ago Changed · +1 lines dc8bf70cf683
  5. 1mo ago Changed beb640a66966
  6. 1mo ago Changed · -3 tokens per session 1c1a89ac479e
  7. 1mo ago First seen · 14 lines · 59 tokens per session scan A 0713a6ac19a8

Subscribe to this mod's changes

pixeltable-debugger is an agent published in the GitHub repository pixeltable/pixeltable-skill (6 stars, last pushed 2d ago), licensed Apache-2.0. It adds 56 tokens to every session and 624 once invoked, about $0.0002 per session on Opus 5.5. 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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