plannotator-last

A command that opens an annotation interface for the assistant's most recently rendered message. It lets the user approve the message, dismiss the session, or leave comments.

In plain words
What is it for?
Use it when the user wants to annotate, approve, dismiss, or request changes to the last assistant message.
Why use it?
It provides a direct way to review and discuss the latest response without copying it into another document.

Command

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/backnotprop/plannotator/plannotator-last
Clone the repo
git clone --depth 1 https://github.com/backnotprop/plannotator
Per session 7 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 235 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 $0.00007 $0.00235
Opus 5 $0.00003 $0.00118
Sonnet 5 $0.00001 $0.00047
Haiku 4.5 $0.00001 $0.00023

Measured yesterday against content hash 237266b0fde8, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

plannotator-last 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 yesterday.

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.

apps/copilot/commands/plannotator-last.md · 17 lines

What it actually says

Message Annotations

!plannotator copilot-last $ARGUMENTS

Your task

The output above will be one of:

  1. The exact text The user approved., OR a JSON object with "decision": "approved". The user approved your last message. If that object also carries a "feedback" field, the user approved with notes: read them and carry them into subsequent work — they are non-blocking guidance, not a request to revise the message. Otherwise acknowledge with a single sentence ("Approved.") and stop. Either way, do not begin any work.
  2. Empty, OR a JSON object with "decision": "dismissed". The user closed the session without requesting changes. Acknowledge with a single sentence ("Annotation session closed.") and stop. Do not begin any work.
  3. Plaintext annotation feedback, OR a JSON object with "decision": "annotated" and a "feedback" field. Address the feedback. The user has reviewed your last message and provided specific annotations and comments.
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. yesterday First seen · 17 lines · 7 tokens per session scan A 237266b0fde8

Subscribe to this mod's changes

plannotator-last is a command published in the GitHub repository backnotprop/plannotator (8,256 stars, last pushed 2d ago), licensed Apache-2.0. It adds 7 tokens to every session and 235 once invoked, about $0.0000 per session on Opus 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.