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dancing-bear: Skill for Claude Code

.claude/skills/rename-session/SKILL.md

rename-session is a skill for Claude Code from dancing-bear-show/dancing-bear. It costs 42 tokens per session (476 once invoked), scanned A, original, MIT.

A small utility that renames the current tmux session, a named group of terminal windows, to a short summary of the current work. It can include a pull request number when one exists.

In plain words
What is it for?
Use it to generate and apply a short session name based on the current task, with an optional pull request prefix.
Why use it?
It keeps terminal sessions identifiable while work changes, reducing the need to rename them by hand. It also avoids using an old pull request number when checking for one.

Skill for Claude Code

Written for Claude Code: allowed-tools in frontmatter. Also seen: reads .claude/ paths.

This is dancing-bear-show/dancing-bear's own configuration. It tells Claude Code how to work on dancing-bear itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything dancing-bear configures →

not rated 7repo yesterday A scan 42 tokens original MIT
View source ↗ dancing-bear-show/dancing-bear
Reuse

Borrowing it

Nothing to install: this file belongs to dancing-bear-show/dancing-bear. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/dancing-bear-show/dancing-bear/main/.claude/skills/rename-session/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/dancing-bear-show/dancing-bear

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 rename-session

README.md
[![agentmods](https://agentmods.dev/badge/skills/dancing-bear-show/dancing-bear/rename-session/github.svg)](https://agentmods.dev/skills/dancing-bear-show/dancing-bear/rename-session)
Your own site
<a href="https://agentmods.dev/skills/dancing-bear-show/dancing-bear/rename-session"><img src="https://agentmods.dev/badge/skills/dancing-bear-show/dancing-bear/rename-session/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 rename-session

Your own site · 80×15
<a href="https://agentmods.dev/skills/dancing-bear-show/dancing-bear/rename-session"><img src="https://agentmods.dev/badge/skills/dancing-bear-show/dancing-bear/rename-session.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 42 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 476 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 $0.00042 $0.00476
Opus 5.5 $0.00017 $0.00190
Sonnet 5.5 $0.00008 $0.00095
Haiku 4.5 $0.00004 $0.00048

Measured yesterday against content hash 24ee63a43866, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

rename-session 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.

The scan reads SKILL.md. This mod also ships 1 executable file (rename.sh), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

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/skills/rename-session/SKILL.md · 49 lines

What it actually says

Rename tmux Session

Generate a descriptive name for the current tmux session based on what we're working on right now, then apply it.

Generate and Apply Name

Look at the last few messages in context to understand the current task. Before choosing a name, check whether a PR exists for the current branch:

# Clear BOTH token variables: gh honours GH_TOKEN as well as GITHUB_TOKEN, so
# clearing only one leaves a stale token able to break PR detection — which
# fails silently here and just drops the pr-<N>- prefix.
pr_number=$(GITHUB_TOKEN= GH_TOKEN= gh pr view --json number -q .number 2>/dev/null)
  • If $pr_number is non-empty, prefer pr-<NUMBER>-<topic> (e.g. pr-42-gmail-filters).
  • If empty, use the topic alone (current behavior).

Then apply the name (the script validates the name, renames the session, and pushes the tab title — the guard hook rejects the inline form of this block, so the tab title would silently not update without the script):

bash .claude/skills/rename-session/rename.sh "<name>"

Naming rules:

  • 2-4 words, lowercase, hyphens not spaces (no spaces in the name)
  • Capture the topic, not the action — gmail-label-sync not syncing-gmail-labels
  • Max 30 characters
  • No punctuation other than hyphens
  • When a PR exists on the current branch, prefix the name with pr-<NUMBER>-

Good: pr-42-gmail-filters, mail-label-sync, calendar-scan, resume-render, whatsapp-search Bad: branch names (too long), repo names (no context), edit-filter-yaml (too granular)

Report the new session name to the user.

Files

What ships with it

1 file beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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 · 49 lines · 42 tokens per session scan A 24ee63a43866

Subscribe to this mod's changes

rename-session is a skill published in the GitHub repository dancing-bear-show/dancing-bear (7 stars, last pushed yesterday), licensed MIT. It adds 42 tokens to every session and 476 once invoked, about $0.0002 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 2026-11-07.

CommitsGit and workflowProductivityautomationcalendarcligmailoauth2outlook
Related

rename-session compared with skills from other repositories

rename-session next to 6 skills from other repositories
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ratchet-filesdzhng/skillsSkill1.5ktodayMITA118Claude Code, Codex