Claude API
loulanyue/awesome-claude-notes
Anthropic Claude API patterns for Python and TypeScript. An agent skill from loulanyue/awesome-claude-notes.
Patches Aider to request Anthropic's one-hour prompt cache lifetime, so long pauses between turns no longer expire the cache or need paid keepalive pings.
Install Aider One-Hour Cache TTL
$ npx skills add OnlyTerp/prompt-cache-skills --skill aider-1h-ttl -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install OnlyTerp/prompt-cache-skills aider-1h-ttl --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/OnlyTerp/prompt-cache-skills.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/aider-1h-ttl .claude/skills/aider-1h-ttl && 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 "aider-1h-ttl" agent skill from https://github.com/OnlyTerp/prompt-cache-skills/tree/main/skills/aider-1h-ttl into .claude/skills/aider-1h-ttl/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "aider-1h-ttl", 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/OnlyTerp/prompt-cache-skills/tree/main/skills/aider-1h-ttlType 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 OnlyTerp/prompt-cache-skills --skill aider-1h-ttl -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install OnlyTerp/prompt-cache-skills aider-1h-ttl --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/OnlyTerp/prompt-cache-skills.git skills-src && mkdir -p .agents/skills && cp -r skills-src/skills/aider-1h-ttl .agents/skills/aider-1h-ttl && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "aider-1h-ttl" agent skill from https://github.com/OnlyTerp/prompt-cache-skills/tree/main/skills/aider-1h-ttl into .agents/skills/aider-1h-ttl/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "aider-1h-ttl", 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 OnlyTerp/prompt-cache-skills --skill aider-1h-ttl -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install OnlyTerp/prompt-cache-skills aider-1h-ttl --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/OnlyTerp/prompt-cache-skills.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/skills/aider-1h-ttl .cursor/skills/aider-1h-ttl && 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 "aider-1h-ttl" agent skill from https://github.com/OnlyTerp/prompt-cache-skills/tree/main/skills/aider-1h-ttl into .cursor/skills/aider-1h-ttl/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "aider-1h-ttl", 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/OnlyTerp/prompt-cache-skills.git --path skills/aider-1h-ttl--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 OnlyTerp/prompt-cache-skills --skill aider-1h-ttl -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install OnlyTerp/prompt-cache-skills aider-1h-ttl --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/OnlyTerp/prompt-cache-skills.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/skills/aider-1h-ttl .gemini/skills/aider-1h-ttl && 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 "aider-1h-ttl" agent skill from https://github.com/OnlyTerp/prompt-cache-skills/tree/main/skills/aider-1h-ttl into .gemini/skills/aider-1h-ttl/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "aider-1h-ttl", 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 OnlyTerp/prompt-cache-skills aider-1h-ttlInstalls 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 OnlyTerp/prompt-cache-skills --skill aider-1h-ttl -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/OnlyTerp/prompt-cache-skills.git skills-src && mkdir -p .github/skills && cp -r skills-src/skills/aider-1h-ttl .github/skills/aider-1h-ttl && 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 "aider-1h-ttl" agent skill from https://github.com/OnlyTerp/prompt-cache-skills/tree/main/skills/aider-1h-ttl into .github/skills/aider-1h-ttl/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "aider-1h-ttl", 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 OnlyTerp/prompt-cache-skills --skill aider-1h-ttl -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install OnlyTerp/prompt-cache-skills aider-1h-ttl --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/OnlyTerp/prompt-cache-skills.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/skills/aider-1h-ttl .opencode/skills/aider-1h-ttl && 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 "aider-1h-ttl" agent skill from https://github.com/OnlyTerp/prompt-cache-skills/tree/main/skills/aider-1h-ttl into .opencode/skills/aider-1h-ttl/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "aider-1h-ttl", 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
aider-1h-ttl- GitHub stars
- 114
- Token cost
- ~990 tokens
- SKILL.md length
- 244 words
- Files
- 1
- Skills in repo
- 13
- Repo updated
- First seen
- Licence
- Custom licence
At a glance
Patches Aider to request Anthropic's one-hour prompt cache lifetime, so long pauses between turns no longer expire the cache or need paid keepalive pings.
- Works in 6 steps: Run with --cache-prompts… → Capture wire. → Request headers should include → …
- Aider sessions with long pauses between prompts
- SKILL.md covers Target, Symptom, Fix (three parts) and Verify, plus 1 more section
- Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
What it does
Aider caches prompts for five minutes by default, so a pause of ten minutes to read code and think lets the cache lapse between turns. The usual workaround, `--cache-keepalive-pings`, sends a trivial request every five minutes and you pay for each one. This skill wires in Anthropic's extended-cache-ttl beta instead, which raises the lifetime to one hour at a higher write cost, about 2x instead of 1.25x, with a break-even near four reads.
The change has three parts in Aider's source: add an extended cache TTL flag in `aider/args.py`, pass it through the message builder in `aider/coders/chat_chunks.py`, and set the `anthropic-beta` header in `aider/sendchat.py` when it is on. To verify, run with `--cache-prompts --extended-cache-ttl --no-stream`, confirm the header and a `ttl` of `1h` on the cache control blocks, wait six minutes, send another prompt and check that cache-read tokens still cover the prefix.
When your agent uses it
- Aider sessions with long pauses between prompts
- Cutting the cost of keepalive pings in Aider
- Checking that an Aider cache still holds after more than five minutes
Example prompts
- “Patch my Aider checkout to support the one-hour cache TTL beta.”
- “Add an --extended-cache-ttl flag to Aider and check the beta header on the wire.”
- “Verify that Aider's cache survives a six-minute gap after the TTL change.”
Requirements
- A local checkout of the Aider source
- Aider configured with an Anthropic model
Workflow steps
6 steps, taken from the first numbered list in SKILL.md.
- Run with --cache-prompts --extended-cache-ttl --no-stream.
- Capture wire.
- Request headers should include
- Request body cache_control blocks should be
- Wait 6 minutes. Send another prompt.
- Response usage.cache_read_input_tokens should still cover the
What it can do on your machine
Read from SKILL.md and the folder at commit 5b58ae2. It shows what the files ask for, not the result of running them.
Tool permissions
Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.
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 diff).
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
Aider One-Hour Cache TTL loads about 990 tokens when it runs. Until then it costs about 32 tokens; SKILL.md has 244 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 passed
The automated check found no risky patterns in SKILL.md.
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
Its licence (Custom licence) doesn't allow us to republish the file, so here is its outline and opening line. It has 244 words (~990 tokens).
- name
- aider-1h-ttl
- target_harness
- Aider
- target_repo
- Aider-AI/aider
- target_files
- aider/coders/chat_chunks.py, aider/sendchat.py, aider/args.py
- target_commit
- 3ec8ec5a
- estimated_savings
- Eliminates --cache-keepalive-pings billing waste; preserves cache across multi-hour thinking pauses
Files
Just SKILL.md in skills/aider-1h-ttl of OnlyTerp/prompt-cache-skills.
Open the folder on GitHubat commit 5b58ae2
Compare with similar skills
Aider One-Hour Cache TTL 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 |
|---|---|---|---|---|---|---|
| Aider One-Hour Cache TTL this skillOnlyTerp/prompt-cache-skills | 114 | — | ~990 | Automated safety check: Pass | Custom licence | |
| Claude APIloulanyue/awesome-claude-notes | 272 | 2 repos | ~2.1k | Automated safety check: Pass | MIT | |
| Claude API Developmentwarpdotdev/warp | 65k | 3 repos | ~8.2k | Automated safety check: Pass | Apache-2.0 | |
| ClawRouter LLM GatewayBlockRunAI/ClawRouter | 6.6k | — | ~6.8k | Automated safety check: Pass | MIT | |
| AIbutterbase-ai/butterbase-skills | 534 | — | ~1.1k | Automated safety check: Pass | MIT | |
| LLM Cost Optimizationsickn33/agentic-awesome-skills | 47k | 1 repos | ~2.5k | Automated safety check: Pass | MIT |
Similar skills
Claude API Development
warpdotdev/warp
Guides building, debugging and tuning apps on the Claude API and Anthropic SDK, including prompt caching, and migrating code between Claude model versions.
ClawRouter LLM Gateway
BlockRunAI/ClawRouter
Describes ClawRouter, a local proxy that forwards each LLM request to the blockrun.ai gateway, which routes to a cheaper capable model, paid by USDC wallet or API key credit.
AI
butterbase-ai/butterbase-skills
A skill your agent uses when calling the app's AI gateway from agent tools — chat completions, embeddings, listing models, configuring defaults or BYOK, reading token/cost usage
LLM Cost Optimization
sickn33/agentic-awesome-skills
Reduce LLM API and infrastructure costs through model selection, prompt caching, batching, caching, quantization, and self-hosting strategies.
Cost Aware LLM Pipeline
aAAaqwq/AGI-Super-Team
Cost optimization patterns for LLM API usage — model routing by task complexity, budget tracking, retry logic, and prompt caching.
More from OnlyTerp/prompt-cache-skills
All 13 skills in this repoAider Prompt Caching Default
OnlyTerp/prompt-cache-skills
Patch recipe that turns on Aider's --cache-prompts by default for models that support caching, with a verification procedure against the wire request.
Cline Prompt Cache Ladder Check
OnlyTerp/prompt-cache-skills
Verifies how Cline marks Anthropic prompt-cache breakpoints on the wire, then adds a tools breakpoint and tunes the cache TTL in its AI SDK code.
Cline OpenAI Prompt Cache Key Fix
OnlyTerp/prompt-cache-skills
Patch guide for adding a stable per-task prompt_cache_key to Cline's OpenAI native provider so cached token counts stop reading as zero.
Cline Pin Timestamp
OnlyTerp/prompt-cache-skills
Cline's system prompt includes a timestamp that may be recomputed per request, invalidating the system-prompt cache.
Continue Enable Defaults
OnlyTerp/prompt-cache-skills
Continue's prompt caching is opt-in via config and off by default.
Continue Gemini Explicit
OnlyTerp/prompt-cache-skills
Continue's Gemini provider doesn't use the cachedContents API at all.
Related
Categories
Questions about Aider One-Hour Cache TTL
What does Aider One-Hour Cache TTL do?
Patches Aider to request Anthropic's one-hour prompt cache lifetime, so long pauses between turns no longer expire the cache or need paid keepalive pings. Aider caches prompts for five minutes by default, so a pause of ten minutes to read code and think lets the cache lapse between turns. The usual workaround, `--cache-keepalive-pings`, sends a trivial request every five minutes and you pay for each one.
When should I use Aider One-Hour Cache TTL?
Aider One-Hour Cache TTL fits situations like: aider sessions with long pauses between prompts; cutting the cost of keepalive pings in Aider; checking that an Aider cache still holds after more than five minutes.
How do I install Aider One-Hour Cache TTL in Claude Code?
Run `npx skills add OnlyTerp/prompt-cache-skills --skill aider-1h-ttl -a claude-code`. Or copy the skill folder (skills/aider-1h-ttl in OnlyTerp/prompt-cache-skills) into .claude/skills/aider-1h-ttl in your project. Claude Code loads it when a task matches its description.
How do I install Aider One-Hour Cache TTL in Codex?
Run `npx skills add OnlyTerp/prompt-cache-skills --skill aider-1h-ttl -a codex`. Or copy the skill folder (skills/aider-1h-ttl in OnlyTerp/prompt-cache-skills) into .agents/skills/aider-1h-ttl in your project. Codex loads it when a task matches its description.
Can I use Aider One-Hour Cache TTL 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 OnlyTerp/prompt-cache-skills --skill aider-1h-ttl -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/aider-1h-ttl, .gemini/skills/aider-1h-ttl, .github/skills/aider-1h-ttl and .opencode/skills/aider-1h-ttl in your project.
What does Aider One-Hour Cache TTL need to run?
SKILL.md names no scripts, command-line tools or credentials: Aider One-Hour Cache TTL is instructions for the agent only. Our summary lists: A local checkout of the Aider source; Aider configured with an Anthropic model.
Does Aider One-Hour Cache TTL 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 Aider One-Hour Cache TTL safe to install?
Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.
What licence does Aider One-Hour Cache TTL use?
Aider One-Hour Cache TTL has a licence file (the repository's licence) that doesn't match a standard licence. Read it on GitHub before reusing the skill.
How many tokens does Aider One-Hour Cache TTL use?
About 990 tokens (SKILL.md is roughly 4k 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 Aider One-Hour Cache TTL?
Skills that share tags, products or a category with Aider One-Hour Cache TTL: Claude API (loulanyue/awesome-claude-notes, 272 stars), Claude API Development (warpdotdev/warp, 65k stars), ClawRouter LLM Gateway (BlockRunAI/ClawRouter, 6.6k stars) and AI (butterbase-ai/butterbase-skills, 534 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Aider One-Hour Cache TTL?
OnlyTerp (a GitHub user) maintains it in OnlyTerp/prompt-cache-skills, which has 114 GitHub stars. The repository holds 13 skills in this directory. The repository was last updated on August 29, 2026.
Source: OnlyTerp/prompt-cache-skills on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.