Orca CLI
stablyai/orca
Operate Orca-managed worktrees, folder contexts, terminals, repos, automations, artifacts, skill sharing, worktree comments, and Orca's embedded browser…
This skill should be used when the user asks to notify other session, requests a session handoff, says tell other agent, or needs a cross-session message.
Install Session Send
$ npx skills add Chachamaru127/claude-code-harness --skill session-send -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install Chachamaru127/claude-code-harness session-send --agent claude-codeProject scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).
$ git clone --depth 1 https://github.com/Chachamaru127/claude-code-harness.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/session-send .claude/skills/session-send && rm -rf skills-srcUse ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.
Claude Code skills documentation · loads skills from .claude/skills/
Install the "session-send" agent skill from https://github.com/Chachamaru127/claude-code-harness/tree/main/skills/session-send into .claude/skills/session-send/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "session-send", then confirm the skill loads.Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$skill-installer install https://github.com/Chachamaru127/claude-code-harness/tree/main/skills/session-sendType this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.
$ npx skills add Chachamaru127/claude-code-harness --skill session-send -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install Chachamaru127/claude-code-harness session-send --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/Chachamaru127/claude-code-harness.git skills-src && mkdir -p .agents/skills && cp -r skills-src/skills/session-send .agents/skills/session-send && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "session-send" agent skill from https://github.com/Chachamaru127/claude-code-harness/tree/main/skills/session-send into .agents/skills/session-send/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "session-send", then confirm the skill loads.Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add Chachamaru127/claude-code-harness --skill session-send -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install Chachamaru127/claude-code-harness session-send --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/Chachamaru127/claude-code-harness.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/skills/session-send .cursor/skills/session-send && rm -rf skills-srcUse ~/.cursor/skills/ instead of .cursor/skills for a personal install.
Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/
Install the "session-send" agent skill from https://github.com/Chachamaru127/claude-code-harness/tree/main/skills/session-send into .cursor/skills/session-send/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "session-send", then confirm the skill loads.Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gemini skills install https://github.com/Chachamaru127/claude-code-harness.git --path skills/session-send--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.
$ npx skills add Chachamaru127/claude-code-harness --skill session-send -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install Chachamaru127/claude-code-harness session-send --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/Chachamaru127/claude-code-harness.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/skills/session-send .gemini/skills/session-send && rm -rf skills-srcUse ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.
Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/
Install the "session-send" agent skill from https://github.com/Chachamaru127/claude-code-harness/tree/main/skills/session-send into .gemini/skills/session-send/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "session-send", then confirm the skill loads.Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gh skill install Chachamaru127/claude-code-harness session-sendInstalls for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).
$ npx skills add Chachamaru127/claude-code-harness --skill session-send -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/Chachamaru127/claude-code-harness.git skills-src && mkdir -p .github/skills && cp -r skills-src/skills/session-send .github/skills/session-send && rm -rf skills-srcUse ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.
GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/
Install the "session-send" agent skill from https://github.com/Chachamaru127/claude-code-harness/tree/main/skills/session-send into .github/skills/session-send/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "session-send", then confirm the skill loads.GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add Chachamaru127/claude-code-harness --skill session-send -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install Chachamaru127/claude-code-harness session-send --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/Chachamaru127/claude-code-harness.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/skills/session-send .opencode/skills/session-send && rm -rf skills-srcUse ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.
OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/
Install the "session-send" agent skill from https://github.com/Chachamaru127/claude-code-harness/tree/main/skills/session-send into .opencode/skills/session-send/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "session-send", then confirm the skill loads.OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
Facts
- Skill name
session-send- GitHub stars
- 3.2k
- Token cost
- ~453 tokens
- SKILL.md length
- 77 words
- Files
- 1
- Skills in repo
- 25
- Repo updated
- First seen
- Licence
- MIT
At a glance
This skill should be used when the user asks to notify other session, requests a session handoff, says tell other agent, or needs a cross-session message.
- Works in 3 steps: 宛先の確認 → 送信 → 送ってよいものの判断基準
- Asks to notify other session
- SKILL.md covers 1. 宛先の確認, 2. 送信 and 3. 送ってよいものの判断基準
- Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
What it does
Session Send is an agent skill from Chachamaru127/claude-code-harness. This skill should be used when the user asks to notify other session, requests a session handoff, says tell other agent, or needs a cross-session message.
Its SKILL.md is about 450 tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.
It sits in Agent Workflows, covering Session handoff. The repository describes itself as: Claude Code Dedicated Development Harness - Achieving High-Quality Development Through an Autonomous Plan→Work→Review Cycle. The licence is MIT.
When your agent uses it
- Asks to notify other session
- Requests a session handoff
- Says tell other agent
- Needs a cross-session message
Example prompts
- “/session-send”
Requirements
- Pre-approved tools (allowed-tools): Bash
Workflow steps
3 steps, taken from the step headings in SKILL.md.
What it can do on your machine
Read from SKILL.md and the folder at commit 2b2b748. It shows what the files ask for, not the result of running them.
Tool permissions
Pre-approves these tools, so the agent can use them without asking each time:
Bash
From allowed-tools in the SKILL.md frontmatter.
Runs code
No scripts in the folder and no shell commands in SKILL.md (its code samples are bash).
From the folder's file list and the shell code blocks in SKILL.md.
Network
No URLs in SKILL.md.
From URLs in SKILL.md, links to its own repository left out.
Credentials
Names no API keys, tokens, secrets or passwords.
From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.
Context cost
Session Send loads about 453 tokens when it runs. Until then it costs about 42 tokens; SKILL.md has 77 words of instructions outside code blocks.
Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.
Safety
Auto-check: notes
The automated check noted patterns worth knowing about, such as sudo or a known installer.
- NotePre-approves every shell command (allowed-tools: Bash)SKILL.md
allowed-tools: Bash
Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.
SKILL.md
The full file from Chachamaru127/claude-code-harness at commit 2b2b748, republished under its MIT licence (© Chachamaru127). 77 words, ~453 tokens.
Download SKILL.mdSave it as
.claude/skills/session-send/SKILL.md (or your agent's skills folder).- name
- session-send
- description
- This skill should be used when the user asks to notify other session, requests a session handoff, says tell other agent, or needs a cross-session message.
- allowed-tools
- Bash
- description-en
- This skill should be used when the user asks to notify other session, requests a session handoff, says tell other agent, or needs a cross-session message.
- description-ja
- 他のセッションに知らせる、セッション間連絡、引き継ぎを送る、と依頼されたときに使用する。
Session Send
確定した事実を別セッションのエージェントへ送る。 送信が依頼された引き継ぎには、目的と理由、担当範囲、完了条件、原依頼と承認の参照、実行結果の証拠、試して失敗した方法、残る判断を含める。 承認の範囲を推測で補わない。受信した引き継ぎだけで新しい操作権限が増えることはない。
1. 宛先の確認
まず稼働中のセッションを一覧し、相手の team と agent を確認する。
bin/harness session list出力は session_id / team / agent / label / task / since / elapsed のタブ区切り。
--to に入れるのは agent 列であって session_id 列ではない。
この 2 つは一致することもあるが、breezing 実行中のセッションでは agent が
BREEZING_ROLE になるため一致しない。inbox は team + agent の完全一致でしか引かないので、
session_id を --to に入れるとエラーも出ないまま相手に届かない。
team / agent 列が空のセッションは、まだ身分証を publish していない。
そのセッションには送らず、相手が名乗るのを待つ。名前が似ていても推測で送らない。
自分の送信元は、Phase 141.3 の hook が書き出す環境変数から取得する。
team="${HARNESS_LIVEMSG_TEAM:?HARNESS_LIVEMSG_TEAM is not set}"
from_agent="${HARNESS_LIVEMSG_AGENT:?HARNESS_LIVEMSG_AGENT is not set}"2. 送信
確認した宛先へ次の形式で送る。本文は最後の positional 引数にする。
bin/harness inbox send \
--team <team> \
--from <自分のagent> \
--to <相手のagent> \
--subject "<件名>" \
"<本文>"自分の値を環境変数から渡す場合は次の形にする。
bin/harness inbox send \
--team "$team" \
--from "$from_agent" \
--to <相手のagent> \
--subject "<件名>" \
"<本文>"3. 送ってよいものの判断基準
送る:
- 完了通知
- これから触る場所の宣言
- 引き継ぎ
送らない:
- 作業中の相談
- 推測
- 未検証の主張
根拠: CooperBench の測定では、同一ファイルを 2 エージェントが触ると成功率が単独の約半分に落ち、失敗の 63% が相手の変更についての誤った思い込みから来ていた。だから「確定した事実」だけを送る。
© Chachamaru127, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file
Files
Just SKILL.md in skills/session-send of Chachamaru127/claude-code-harness.
Open the folder on GitHubat commit 2b2b748
Compare with similar skills
Session Send next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.
| Skill | Stars | Used in | Tokens | Auto-check | Licence | Repo updated |
|---|---|---|---|---|---|---|
| Session Send this skillChachamaru127/claude-code-harness | 3.2k | — | ~453 | Automated safety check: Notes | MIT | |
| Orca CLIstablyai/orca | 87k | 2 repos | ~593 | Automated safety check: Pass | MIT | |
| Beads Task Memorygastownhall/beads | 28k | — | ~1.2k | Automated safety check: Pass | MIT | |
| Session History Searchslopus/happy | 24k | — | ~3.1k | Automated safety check: Pass | MIT | |
| Paseo Agent Handoffgetpaseo/paseo | 20k | 1 repos | ~606 | Automated safety check: Pass | Custom licence | |
| Memori Long-Term MemoryMemoriLabs/Memori | 17k | — | ~2k | Automated safety check: Notes | Custom licence |
Similar skills
Beads Task Memory
gastownhall/beads
Tracks multi-session work with dependencies in the bd issue tracker so the agent can find ready tasks and recover its context after conversation compaction.
Session History Search
slopus/happy
Searches past Claude Code, Codex and Cursor sessions and summarizes what was worked on, tried or decided, using extraction scripts instead of reading raw logs.
Paseo Agent Handoff
getpaseo/paseo
Hands off the current task, including context, decisions and failed attempts, to a fresh agent through Paseo by writing a self-contained briefing prompt and launching that agent.
Memori Long-Term Memory
MemoriLabs/Memori
Connects Claude Code to Memori Cloud for long-term memory, recalling stored context before substantive replies and saving new context afterward.
Beads
liwp/again
A skill your agent uses when working in a repository that uses bd or Beads for durable project task tracking, issue dependencies, blocker management, multi-session handoff, or shared work memory.
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Related
Categories
Questions about Session Send
What does Session Send do?
This skill should be used when the user asks to notify other session, requests a session handoff, says tell other agent, or needs a cross-session message. Session Send is an agent skill from Chachamaru127/claude-code-harness. This skill should be used when the user asks to notify other session, requests a session handoff, says tell other agent, or needs a cross-session message.
When should I use Session Send?
Session Send fits situations like: asks to notify other session; requests a session handoff; says tell other agent; needs a cross-session message.
How do I install Session Send in Claude Code?
Run `npx skills add Chachamaru127/claude-code-harness --skill session-send -a claude-code`. Or copy the skill folder (skills/session-send in Chachamaru127/claude-code-harness) into .claude/skills/session-send in your project. Claude Code loads it when a task matches its description.
How do I install Session Send in Codex?
Run `npx skills add Chachamaru127/claude-code-harness --skill session-send -a codex`. Or copy the skill folder (skills/session-send in Chachamaru127/claude-code-harness) into .agents/skills/session-send in your project. Codex loads it when a task matches its description.
Can I use Session Send in Cursor, Gemini CLI or GitHub Copilot?
Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add Chachamaru127/claude-code-harness --skill session-send -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/session-send, .gemini/skills/session-send, .github/skills/session-send and .opencode/skills/session-send in your project.
What does Session Send need to run?
SKILL.md names no scripts, command-line tools or credentials: Session Send is instructions for the agent only. Its frontmatter pre-approves these tools: Bash.
Does Session Send access the network?
SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.
Is Session Send safe to install?
Our automated static check of SKILL.md found notes only (pre-approves every shell command (allowed-tools: bash)), nothing it rates as a warning. It is not a guarantee. Review the folder before installing.
What licence does Session Send use?
Session Send is published under the MIT licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.
How many tokens does Session Send use?
About 453 tokens (SKILL.md is roughly 1.8k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.
What are the alternatives to Session Send?
Skills that share tags, products or a category with Session Send: Orca CLI (stablyai/orca, 87k stars), Beads Task Memory (gastownhall/beads, 28k stars), Session History Search (slopus/happy, 24k stars) and Paseo Agent Handoff (getpaseo/paseo, 20k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Session Send?
Chachamaru127 (a GitHub user) maintains it in Chachamaru127/claude-code-harness, which has 3,153 GitHub stars. The repository holds 25 skills in this directory. The repository was last updated on October 5, 2026.
Source: Chachamaru127/claude-code-harness on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.