Claude Code Agent Development
anthropics/claude-plugins-official
Explains how to write agents for Claude Code plugins: the markdown file with YAML frontmatter, trigger descriptions, model and color settings, and system prompt design.
Manual memory flush: dump current session context to daily raw log via subagent.
Install Hipocampus Flush
$ npx skills add kevin-hs-sohn/hipocampus --skill hipocampus-flush -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install kevin-hs-sohn/hipocampus hipocampus-flush --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/kevin-hs-sohn/hipocampus.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/flush .claude/skills/hipocampus-flush && 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 "hipocampus-flush" agent skill from https://github.com/kevin-hs-sohn/hipocampus/tree/main/skills/flush into .claude/skills/hipocampus-flush/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "hipocampus-flush", 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/kevin-hs-sohn/hipocampus/tree/main/skills/flushType 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 kevin-hs-sohn/hipocampus --skill hipocampus-flush -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install kevin-hs-sohn/hipocampus hipocampus-flush --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/kevin-hs-sohn/hipocampus.git skills-src && mkdir -p .agents/skills && cp -r skills-src/skills/flush .agents/skills/hipocampus-flush && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "hipocampus-flush" agent skill from https://github.com/kevin-hs-sohn/hipocampus/tree/main/skills/flush into .agents/skills/hipocampus-flush/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "hipocampus-flush", 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 kevin-hs-sohn/hipocampus --skill hipocampus-flush -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install kevin-hs-sohn/hipocampus hipocampus-flush --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/kevin-hs-sohn/hipocampus.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/skills/flush .cursor/skills/hipocampus-flush && 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 "hipocampus-flush" agent skill from https://github.com/kevin-hs-sohn/hipocampus/tree/main/skills/flush into .cursor/skills/hipocampus-flush/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "hipocampus-flush", 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/kevin-hs-sohn/hipocampus.git --path skills/flush--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 kevin-hs-sohn/hipocampus --skill hipocampus-flush -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install kevin-hs-sohn/hipocampus hipocampus-flush --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/kevin-hs-sohn/hipocampus.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/skills/flush .gemini/skills/hipocampus-flush && 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 "hipocampus-flush" agent skill from https://github.com/kevin-hs-sohn/hipocampus/tree/main/skills/flush into .gemini/skills/hipocampus-flush/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "hipocampus-flush", 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 kevin-hs-sohn/hipocampus hipocampus-flushInstalls 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 kevin-hs-sohn/hipocampus --skill hipocampus-flush -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/kevin-hs-sohn/hipocampus.git skills-src && mkdir -p .github/skills && cp -r skills-src/skills/flush .github/skills/hipocampus-flush && 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 "hipocampus-flush" agent skill from https://github.com/kevin-hs-sohn/hipocampus/tree/main/skills/flush into .github/skills/hipocampus-flush/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "hipocampus-flush", 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 kevin-hs-sohn/hipocampus --skill hipocampus-flush -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install kevin-hs-sohn/hipocampus hipocampus-flush --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/kevin-hs-sohn/hipocampus.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/skills/flush .opencode/skills/hipocampus-flush && 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 "hipocampus-flush" agent skill from https://github.com/kevin-hs-sohn/hipocampus/tree/main/skills/flush into .opencode/skills/hipocampus-flush/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "hipocampus-flush", 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
hipocampus-flush- GitHub stars
- 210
- Token cost
- ~349 tokens
- SKILL.md length
- 125 words
- Files
- 1
- Skills in repo
- 8
- Repo updated
- First seen
- Licence
- MIT
At a glance
Manual memory flush: dump current session context to daily raw log via subagent.
- Works in 3 steps: Compose session summary → Dispatch subagent → Report
- Tasks that involve Subagents
- Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
What it does
Hipocampus Flush is an agent skill from kevin-hs-sohn/hipocampus. Manual memory flush: dump current session context to daily raw log via subagent. Invoke with /hipocampus:flush. Run hipocampus:compaction afterwards for tree propagation and qmd reindex.
Its SKILL.md is about 350 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 Subagents. The repository describes itself as: Drop-in memory harness for AI agents — 3-tier memory, compaction tree, hybrid search. One command to set up. Works with Claude Code and OpenClaw. The licence is MIT.
When your agent uses it
- Tasks that involve Subagents
Example prompts
- “/hipocampus-flush”
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 df88ca1. 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 markdown).
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
Hipocampus Flush loads about 349 tokens when it runs. Until then it costs about 51 tokens; SKILL.md has 125 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
The full file from kevin-hs-sohn/hipocampus at commit df88ca1, republished under its MIT licence (© kevin-hs-sohn). 125 words, ~349 tokens.
Download SKILL.mdSave it as
.claude/skills/hipocampus-flush/SKILL.md (or your agent's skills folder).- name
- hipocampus-flush
- description
- Manual memory flush: dump current session context to daily raw log via subagent. Invoke with /hipocampus:flush. Run hipocampus:compaction afterwards for tree propagation and qmd reindex.
- user_invocable
- true
Hipocampus Memory Flush
Dump current session context to the daily raw log. Use when you want to persist what happened in this session without waiting for End-of-Task Checkpoint or context compression.
For full compaction (needs-summarization processing, tree propagation, qmd reindex), run hipocampus:compaction skill after this.
Steps
1. Compose session summary
Gather a summary of everything discussed in this session so far. For each topic:
## [Topic Name]
- request: what the user asked
- analysis: what you researched/analyzed
- decisions: choices made with rationale
- outcome: what was done, files changed
- references: knowledge/ files, external sources2. Dispatch subagent
Dispatch a subagent with the session summary and this task:
Hipocampus memory flush. Append the following structured log to memory/YYYY-MM-DD.md (today's date). Then run
hipocampus compactto propagate through the tree.[paste session summary here]
The subagent writes the files and runs compact. The main session stays clean.
3. Report
Confirm the flush completed:
- Topics flushed
- Subagent status
© kevin-hs-sohn, 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/flush of kevin-hs-sohn/hipocampus.
Open the folder on GitHubat commit df88ca1
Compare with similar skills
Hipocampus Flush 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 |
|---|---|---|---|---|---|---|
| Hipocampus Flush this skillkevin-hs-sohn/hipocampus | 210 | — | ~349 | Automated safety check: Pass | MIT | |
| Claude Code Agent Developmentanthropics/claude-plugins-official | 38k | 7 repos | ~2.8k | Automated safety check: Pass | Apache-2.0 | |
| Subagent Driven DevelopmentAsvarox/allkaraoke | 261 | 38 repos | ~1.2k | Automated safety check: Pass | None | |
| Dispatching Parallel Agentsultralisp/ultralisp | 258 | 41 repos | ~1.5k | Automated safety check: Pass | None | |
| Reflect on Session Learningscursor/plugins | 11k | 5 repos | ~1.2k | Automated safety check: Pass | None | |
| Paseo Advisor Second Opiniongetpaseo/paseo | 20k | 1 repos | ~756 | Automated safety check: Pass | Custom licence |
Similar skills
- Official
Subagent Driven Development
Asvarox/allkaraoke
A skill your agent uses when executing implementation plans with independent tasks in the current session
Dispatching Parallel Agents
ultralisp/ultralisp
A skill your agent uses when facing 2+ independent tasks that can be worked on without shared state or sequential dependencies
- Official
Reflect on Session Learnings
cursor/plugins
Starts three parallel reviewer subagents over the current conversation transcript, then turns their findings into concrete edits to existing skills.
Paseo Advisor Second Opinion
getpaseo/paseo
Launches one separate agent through Paseo to give a second opinion on the current task, with a self-contained briefing and no permission to edit files.
Task Observer
rebelytics/one-skill-to-rule-them-all
Monitors task execution for skill improvement opportunities.
More from kevin-hs-sohn/hipocampus
All 8 skills in this repoHipocampus Compaction
kevin-hs-sohn/hipocampus
Build 5-level compaction tree (daily/weekly/monthly/root) with smart thresholds and fixed/tentative lifecycle.
Hipocampus Core
kevin-hs-sohn/hipocampus
3-tier agent memory system with 5-level compaction tree. An agent skill from kevin-hs-sohn/hipocampus.
Hipocampus Core
kevin-hs-sohn/hipocampus
3-tier agent memory system with 5-level compaction tree. An agent skill from kevin-hs-sohn/hipocampus.
Hipocampus Core
kevin-hs-sohn/hipocampus
3-tier agent memory system with 5-level compaction tree. An agent skill from kevin-hs-sohn/hipocampus.
Hipocampus Core
kevin-hs-sohn/hipocampus
3-tier agent memory system with 5-level compaction tree. An agent skill from kevin-hs-sohn/hipocampus.
Hipocampus Recall
kevin-hs-sohn/hipocampus
Memory recall guide. An agent skill from kevin-hs-sohn/hipocampus.
Related
Categories
Questions about Hipocampus Flush
What does Hipocampus Flush do?
Manual memory flush: dump current session context to daily raw log via subagent. Hipocampus Flush is an agent skill from kevin-hs-sohn/hipocampus. Manual memory flush: dump current session context to daily raw log via subagent.
When should I use Hipocampus Flush?
Hipocampus Flush fits situations like: tasks that involve Subagents.
How do I install Hipocampus Flush in Claude Code?
Run `npx skills add kevin-hs-sohn/hipocampus --skill hipocampus-flush -a claude-code`. Or copy the skill folder (skills/flush in kevin-hs-sohn/hipocampus) into .claude/skills/hipocampus-flush in your project. Claude Code loads it when a task matches its description.
How do I install Hipocampus Flush in Codex?
Run `npx skills add kevin-hs-sohn/hipocampus --skill hipocampus-flush -a codex`. Or copy the skill folder (skills/flush in kevin-hs-sohn/hipocampus) into .agents/skills/hipocampus-flush in your project. Codex loads it when a task matches its description.
Can I use Hipocampus Flush 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 kevin-hs-sohn/hipocampus --skill hipocampus-flush -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/hipocampus-flush, .gemini/skills/hipocampus-flush, .github/skills/hipocampus-flush and .opencode/skills/hipocampus-flush in your project.
What does Hipocampus Flush need to run?
SKILL.md names no scripts, command-line tools or credentials: Hipocampus Flush is instructions for the agent only.
Does Hipocampus Flush 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 Hipocampus Flush 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 Hipocampus Flush use?
Hipocampus Flush 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 Hipocampus Flush use?
About 349 tokens (SKILL.md is roughly 1.4k 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 Hipocampus Flush?
Skills that share tags, products or a category with Hipocampus Flush: Claude Code Agent Development (anthropics/claude-plugins-official, 38k stars), Subagent Driven Development (Asvarox/allkaraoke, 261 stars), Dispatching Parallel Agents (ultralisp/ultralisp, 258 stars) and Reflect on Session Learnings (cursor/plugins, 11k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Hipocampus Flush?
kevin-hs-sohn (a GitHub user) maintains it in kevin-hs-sohn/hipocampus, which has 210 GitHub stars. The repository holds 8 skills in this directory. The repository was last updated on June 8, 2026.
Source: kevin-hs-sohn/hipocampus on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.