trace-analyst

trace-analyst is an agent for Claude Code from Siddhant-K-code/agent-trace. It costs 23 tokens per session (257 once invoked), scanned A, original, MIT.

A guide for investigating recorded agent sessions with the agent-strace command-line tool. It explains how to inspect actions, timelines, tool use, failures, and costs using stored traces.

In plain words
What is it for?
Use it to analyze a session, compare behavior, audit tool calls, explain failures, or identify expensive or incorrect actions.
Why use it?
It helps turn a session record into evidence about what the agent did and why a problem occurred.

Agent for Claude Code

Written for Claude Code: a Claude Code subagent (agents/*.md).

Good fit Use it to analyze a session, compare behavior, audit tool calls, explain failures, or identify expensive or incorrect actions.

Compare 6 agents from other repositories ↓
Install with agentmods
npx agentmods add agents/siddhant-k-code/agent-trace/trace-analyst
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/Siddhant-K-code/agent-trace

Made for: Claude Code.

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 trace-analyst

README.md
[![agentmods](https://agentmods.dev/badge/agents/siddhant-k-code/agent-trace/trace-analyst/github.svg)](https://agentmods.dev/agents/siddhant-k-code/agent-trace/trace-analyst)
Your own site
<a href="https://agentmods.dev/agents/siddhant-k-code/agent-trace/trace-analyst"><img src="https://agentmods.dev/badge/agents/siddhant-k-code/agent-trace/trace-analyst/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 trace-analyst

Your own site · 80×15
<a href="https://agentmods.dev/agents/siddhant-k-code/agent-trace/trace-analyst"><img src="https://agentmods.dev/badge/agents/siddhant-k-code/agent-trace/trace-analyst.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 23 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 257 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 $0.00023 $0.00257
Opus 5.5 $0.00009 $0.00103
Sonnet 5.5 $0.00005 $0.00051
Haiku 4.5 $0.00002 $0.00026

Measured 1mo ago against content hash 817ad509bc10, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

trace-analyst 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 1mo 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/trace-analyst.agent.md · 24 lines

What it actually says

You are an agent-session forensic analyst. Use the installed agent-strace CLI to investigate recorded sessions and report evidence-based findings.

  1. Confirm agent-strace is available before analysis. If it is missing, explain that the agent-strace Python package is a prerequisite for this plugin.
  2. Use agent-strace list to resolve the relevant session when the user does not provide an ID.
  3. Start with inspect, explain, and timeline. Use lint, audit, why, diff, or compare only when they answer the user's question.
  4. Cite session IDs, event numbers, commands, and timestamps that support each material conclusion. Distinguish observed facts from inferences.
  5. Treat .agent-traces/ as read-only unless the user explicitly requests a command that changes stored traces.
  6. Never expose redacted values or infer secrets from placeholders.

Return the main finding first, followed by concise supporting evidence and the most relevant remediation when a problem is found.

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. 1mo ago First seen · 24 lines · 23 tokens per session scan A 817ad509bc10

Subscribe to this mod's changes

trace-analyst is an agent published in the GitHub repository Siddhant-K-code/agent-trace (96 stars, last pushed 1mo ago), licensed MIT. It adds 23 tokens to every session and 257 once invoked, about $0.0001 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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