echo-mode

echo-mode is a skill for Claude Code, Codex from SoliEstre/EstreGenesis. It costs 177 tokens per session (1,356 once invoked), scanned A, original, Apache-2.0.

A setting that mirrors an agent’s local conversation to a shared Constellation board and can let a person on the board drive that agent.

In plain words
What is it for?
Use it to turn mirroring off, show final conversation turns, stream live activity, check the current setting, or control another agent when authorized.
Why use it?
It makes local agent activity visible to people watching the board and provides a way to interact with the agent remotely.

Skill for Claude CodeCodex

Part of the constellation plugin — 10 skills, 1 hook shipped together

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 skills/soliestre/estregenesis/echo-mode
Any agent
npx skills add SoliEstre/EstreGenesis --skill echo-mode
Clone the repo
git clone --depth 1 https://github.com/SoliEstre/EstreGenesis

Made for: Claude Code, Codex.

Or install constellation, the plugin that ships this one along with the rest of its 10 skills, 1 hook.

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 echo-mode

README.md
[![agentmods](https://agentmods.dev/badge/skills/soliestre/estregenesis/echo-mode.svg)](https://agentmods.dev/skills/soliestre/estregenesis/echo-mode)
Your own site
<a href="https://agentmods.dev/skills/soliestre/estregenesis/echo-mode"><img src="https://agentmods.dev/badge/skills/soliestre/estregenesis/echo-mode.svg" alt="Measured on agentmods" height="20"></a>
Per session 177 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,356 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 $0.00177 $0.01356
Opus 5 $0.00088 $0.00678
Sonnet 5 $0.00035 $0.00271
Haiku 4.5 $0.00018 $0.00136

Measured 5d ago against content hash a98d4788ea01, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

echo-mode 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 5d 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.

plugins/constellation/skills/echo-mode/SKILL.md · 54 lines

How it starts

The opening of the file, as written. The whole thing — 54 lines — stays where its author put it; the contents beside it link to each section on GitHub.

/echo-mode — mirror the local chat to the board (remote-control)

Bridges an agent's local client conversation (Claude Code / IDE / terminal) with the board's real-time conversation channel, both directions, so a human watching the board can also drive the agent through it. Full spec: Constellation.md §13.26. This skill is the SSoT for the runtime discipline; the echo-emit.cjs hooks (when installed) mechanize the outbound mirror.

Invocation + levels

/echo-mode off|on|mirror|status [agentId] — no agentId targets the invoking agent; targeting another is main-authority gated.

Level Mirrors (local → board)
off nothing
on the human's prompt + the assistant's turn-final text + selection prompts (conversation echo)
mirror everything in on + live progress (tool calls, steps, run boundaries) + thinking narration/summary, streamed as the turn runs (chat-gateway / Telegram-bot feel)

Board→local drive works at both on and mirror — only the outbound richness differs. On any change, announce EchoModeState { agentId, level, provenance } to the board (idempotent) so the dashboard badges the agent and renders its channel as a live conversation.

Protocol when enabled (§13.26.1–.2)

Local → board (mirror out):

  • After each assistant turn, emit the turn's user-facing text to this agent's board channel as a TEXT_MESSAGE (streaming TEXT_MESSAGE_START/_CONTENT/_END if the client can stream). Both levels.
  • Emit the human's local prompt that opened the turn as UserPrompt { source:'user', text }. Do not re-emit a prompt that arrived from the board — it is already there; just quote it locally (below).
  • mirror only — stream live progress as the turn runs: tool calls → TOOL_CALL_* cards, steps → STEP_*, run boundaries → RUN_STARTED/_FINISHED, and thinking narration → short status TEXT_MESSAGE/STEP lines + a turn-end thinking summary. Not raw verbatim chain-of-thought (too verbose, no host thinking-hook) — progress + narration + summary.

Read the full file on GitHub · 54 lines

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. 5d ago First seen · 54 lines · 177 tokens per session scan A a98d4788ea01

Subscribe to this mod's changes

echo-mode is a skill published in the GitHub repository SoliEstre/EstreGenesis (8 stars, last pushed today), licensed Apache-2.0. It adds 177 tokens to every session and 1,356 once invoked, about $0.0009 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 2026-08-31.

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