record

A command that creates starter Python code for recording an AI agent's steps with agentdelta. The recording can cover frameworks such as LangChain, LangGraph, or a custom agent.

In plain words
What is it for?
Use it to record a baseline and a changed version of an agent, or to save custom agent steps as a JSONL trace file.
Why use it?
It avoids writing the setup needed to capture agent runs for later comparison or inspection.

Command for Claude Code

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.

agentmods
npx agentmods add commands/sandeep-alluru/agentdelta/record
Clone the repo
git clone --depth 1 https://github.com/sandeep-alluru/agentdelta

Made for: Claude Code.

Per session 0 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 415 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
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 $0.00000 $0.00415
Opus 5 $0.00000 $0.00208
Sonnet 5 $0.00000 $0.00083
Haiku 4.5 $0.00000 $0.00042

Measured 2d ago against content hash 2ee7ea1877a1, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

record 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 2d 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.

.claude/commands/record.md · 42 lines

What it actually says

Generate boilerplate code to record an agent run with agentdelta.

Usage: /project:record [framework] [agent_variable_name]

Arguments: $ARGUMENTS (optional: framework name like "langchain", "langgraph", "custom")

Generate a self-contained Python snippet that:

For LangChain/LangGraph (default):

from agentdelta import record

# Baseline (before your change)
with record("baseline.jsonl", run_id="v1.0") as cb:
    agent.invoke({"input": "..."}, config={"callbacks": [cb]})

# Candidate (after your change)
with record("candidate.jsonl", run_id="v1.1") as cb:
    agent.invoke({"input": "..."}, config={"callbacks": [cb]})

For custom/framework-agnostic:

from agentdelta import AgentTrace
from agentdelta.trace import TraceNode, TraceEdge, NodeType, EdgeType

trace = AgentTrace(run_id="my_run")
trace.add_node(TraceNode(step=1, node_type=NodeType.START, content="user input here"))
trace.add_node(TraceNode(step=2, node_type=NodeType.LLM, content="reasoning text here"))
trace.add_node(TraceNode(step=3, node_type=NodeType.TOOL_CALL, content="tool_name(args)"))
trace.add_node(TraceNode(step=4, node_type=NodeType.TOOL_RETURN, content="tool result"))
trace.add_node(TraceNode(step=5, node_type=NodeType.END, content="final output"))
trace.save("my_run.jsonl")

Then show the diff command: agentdelta diff baseline.jsonl candidate.jsonl

Context:

  • AgentdeltaCallback is LangChain BaseCallbackHandler-compatible (no import of BaseCallbackHandler needed)
  • record() saves the trace on context exit, even if the agent raises an exception
  • run_id appears in the diff report header — use something meaningful (version, git hash, etc.)
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. 2d ago First seen · 42 lines · 0 tokens per session scan A 2ee7ea1877a1

Subscribe to this mod's changes

record is a command published in the GitHub repository sandeep-alluru/agentdelta (0 stars, last pushed 16d ago), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 415 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 2026-08-31.