Context Guardian
sickn33/agentic-awesome-skills
Guardiao de contexto que preserva dados criticos antes da compactacao automatica.
Manage SSOT, memory, and cross-tool memory search. An agent skill from Chachamaru127/claude-code-harness.
MITAuto-check: notes
Install Memory
$ npx skills add Chachamaru127/claude-code-harness --skill memory -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install Chachamaru127/claude-code-harness memory --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/memory .claude/skills/memory && 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 "memory" agent skill from https://github.com/Chachamaru127/claude-code-harness/tree/main/skills/memory into .claude/skills/memory/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "memory", 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/memoryType 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 memory -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install Chachamaru127/claude-code-harness memory --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/memory .agents/skills/memory && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "memory" agent skill from https://github.com/Chachamaru127/claude-code-harness/tree/main/skills/memory into .agents/skills/memory/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "memory", 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 memory -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install Chachamaru127/claude-code-harness memory --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/memory .cursor/skills/memory && 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 "memory" agent skill from https://github.com/Chachamaru127/claude-code-harness/tree/main/skills/memory into .cursor/skills/memory/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "memory", 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/memory--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 memory -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install Chachamaru127/claude-code-harness memory --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/memory .gemini/skills/memory && 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 "memory" agent skill from https://github.com/Chachamaru127/claude-code-harness/tree/main/skills/memory into .gemini/skills/memory/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "memory", 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 memoryInstalls 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 memory -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/memory .github/skills/memory && 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 "memory" agent skill from https://github.com/Chachamaru127/claude-code-harness/tree/main/skills/memory into .github/skills/memory/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "memory", 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 memory -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 memory --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/memory .opencode/skills/memory && 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 "memory" agent skill from https://github.com/Chachamaru127/claude-code-harness/tree/main/skills/memory into .opencode/skills/memory/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "memory", 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
memory- GitHub stars
- 3.2k
- Used in
- 1 other repo
- Token cost
- ~761 tokens
- SKILL.md length
- 90 words
- Files
- 6 (incl. references)
- Skills in repo
- 25
- Repo updated
- First seen
- Licence
- MIT
At a glance
Manage SSOT, memory, and cross-tool memory search. An agent skill from Chachamaru127/claude-code-harness.
- Works in 3 steps: ユーザーのリクエストを分類 → 上記の「機能詳細」から適切な参照ファイルを読む → その内容に従って実行
- User mentions memory
- SKILL.md covers 機能詳細, Unified Harness Memory（共通DB）, Claude Code 自動メモリとの関係（D22） and 実行手順, plus 1 more section
- Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
What it does
Memory is an agent skill from Chachamaru127/claude-code-harness. Manage SSOT, memory, and cross-tool memory search. Guardian of decisions.md and patterns.md. Use when user mentions memory, SSOT, decisions.md, patterns.md, merging, migration, SSOT promotion, sync memory, save learnings, memory search, harness-mem, past decisions, or record this. Do NOT load for: implementation work, reviews, ad-hoc notes, or in-session logging.
Its SKILL.md is about 760 tokens, which your agent loads only when the skill is triggered. The skill folder holds 6 other files, including reference files (for example `references/plans-merging.md`, `references/ssot-initialization.md` and `references/sync-project-specs.md`).
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
- User mentions memory
Example prompts
- “/memory”
Requirements
- Pre-approved tools (allowed-tools): Read, Write, Edit, Bash, mcp__harness__harness_mem_*
Workflow steps
3 steps, taken from the first numbered list in SKILL.md.
- ユーザーのリクエストを分類
- 上記の「機能詳細」から適切な参照ファイルを読む
- その内容に従って実行
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:
ReadWriteEditBashmcp__harness__harness_mem_*
From allowed-tools in the SKILL.md frontmatter.
Runs code
No scripts in the folder and no shell commands in SKILL.md.
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
Memory loads about 761 tokens when it runs, and up to ~6k if it reads all its reference files. Until then it costs about 93 tokens; SKILL.md has 90 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: Read, Write, Edit, Bash, mcp__harness__harness_mem_*
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). 90 words, ~761 tokens.
Download SKILL.mdSave it as
.claude/skills/memory/SKILL.md (or your agent's skills folder). This skill also uses 5 other files; get the full folder from GitHub.- name
- memory
- description
- Manage SSOT, memory, and cross-tool memory search. Guardian of decisions.md and patterns.md. Use when user mentions memory, SSOT, decisions.md, patterns.md, merging, migration, SSOT promotion, sync memory, save learnings, memory search, harness-mem, past decisions, or record this. Do NOT load for: implementation work, reviews, ad-hoc notes, or in-session logging.
- allowed-tools
- Read, Write, Edit, Bash, mcp__harness__harness_mem_*
- description-en
- Manage SSOT, memory, and cross-tool memory search. Guardian of decisions.md and patterns.md. Use when user mentions memory, SSOT, decisions.md, patterns.md…
- description-ja
- SSOTと記憶を管理し、ツール横断の記憶検索を提供。decisions.mdとpatterns.mdの守護者です。Use when user mentions memory, SSOT, decisions.md, patterns.md, merging, migration, SSOT promotion…
- argument-hint
- [ssot|sync|migrate|search|record]
- user-invocable
- true
- context
- fork
Memory Skills
メモリとSSOT管理を担当するスキル群です。 検索依頼は読み取りで完了する。記録、昇格、移行は、その操作を明示依頼された範囲だけ行う。 既存記録は出典と判断理由を保ち、現在の状態に依存する事実は現物を再確認してから使う。 記録候補を見つけただけで永続保存を始めない。
機能詳細
| 機能 | 詳細 |
|---|---|
| SSOT初期化 | See references/ssot-initialization.md |
| Plans.mdマージ | See references/plans-merging.md |
| 移行処理 | See references/workflow-migration.md |
| プロジェクト仕様同期 | See references/sync-project-specs.md |
| メモリ→SSOT昇格 | See references/sync-ssot-from-memory.md |
Unified Harness Memory（共通DB）
Claude Code / Codex / OpenCode 共通の記録・検索は harness_mem_* MCP を優先する。
- 検索:
harness_mem_search,harness_mem_timeline,harness_mem_get_observations - 注入:
harness_mem_resume_pack - 記録:
harness_mem_record_checkpoint,harness_mem_finalize_session,harness_mem_record_event
Claude Code 自動メモリとの関係（D22）
Harness の SSOT メモリ（Layer 2）は Claude Code の自動メモリ（Layer 1）と共存します。
自動メモリは汎用的な学習を暗黙的に記録し、SSOT はプロジェクト固有の意思決定を明示的に管理します。
Layer 1 の知見がプロジェクト全体に重要な場合、/memory ssot で Layer 2 に昇格してください。
実行手順
- ユーザーのリクエストを分類
- 上記の「機能詳細」から適切な参照ファイルを読む
- その内容に従って実行
SSOT昇格
メモリシステム（Claude-mem / Serena）から重要な学びをSSOTに永続化します。
- "Save what we learned" → references/sync-ssot-from-memory.md
- "Promote decisions to SSOT" → references/sync-ssot-from-memory.md
© 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
SKILL.md and 5 other files (references) in skills/memory of Chachamaru127/claude-code-harness.
- SKILL.md
- references/plans-merging.md
- references/ssot-initialization.md
- references/sync-project-specs.md
- references/sync-ssot-from-memory.md
- references/workflow-migration.md
Open the folder on GitHubat commit 2b2b748
Used in 1 other repository
We found 3 copies of this SKILL.md (exact, near-identical or edited) in other folders, from 1 other GitHub owner. This page covers the copy in Chachamaru127/claude-code-harness, which our catalogue first saw on October 7, 2026.
Compare with similar skills
Memory 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 |
|---|---|---|---|---|---|---|
| Memory this skillChachamaru127/claude-code-harness | 3.2k | 1 repos | ~761 | Automated safety check: Notes | MIT | |
| Context Guardiansickn33/agentic-awesome-skills | 47k | 2 repos | ~3.3k | Automated safety check: Pass | MIT | |
| Fullstack GuardianJeffallan/claude-skills | 12k | — | ~1.5k | Automated safety check: Pass | MIT | |
| Openclaw GuardianLeoYeAI/openclaw-master-skills | 2.2k | — | ~634 | Automated safety check: Warn | MIT | |
| Scope Guardian Reviewerudecode/plate | 17k | — | ~812 | Automated safety check: Pass | Custom licence | |
| Secure Code GuardianJeffallan/claude-skills | 12k | — | ~1.8k | Automated safety check: Pass | MIT |
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Scope Guardian Reviewer
udecode/plate
Reviews planning documents for scope alignment and unjustified complexity -- challenges unnecessary abstractions, premature frameworks, and scope that exceeds stated goals.
Secure Code Guardian
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Guides secure implementation of authentication, authorization, input validation and security headers, with password hashing, parameterized queries and OWASP Top 10 checks.
- Official
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Questions about Memory
What does Memory do?
Manage SSOT, memory, and cross-tool memory search. An agent skill from Chachamaru127/claude-code-harness. Memory is an agent skill from Chachamaru127/claude-code-harness. Manage SSOT, memory, and cross-tool memory search.
When should I use Memory?
Memory fits situations like: user mentions memory.
How do I install Memory in Claude Code?
Run `npx skills add Chachamaru127/claude-code-harness --skill memory -a claude-code`. Or copy the skill folder (skills/memory in Chachamaru127/claude-code-harness) into .claude/skills/memory in your project. Claude Code loads it when a task matches its description.
How do I install Memory in Codex?
Run `npx skills add Chachamaru127/claude-code-harness --skill memory -a codex`. Or copy the skill folder (skills/memory in Chachamaru127/claude-code-harness) into .agents/skills/memory in your project. Codex loads it when a task matches its description.
Can I use Memory 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 memory -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/memory, .gemini/skills/memory, .github/skills/memory and .opencode/skills/memory in your project.
What does Memory need to run?
SKILL.md names no scripts, command-line tools or credentials: Memory is instructions for the agent only. Its frontmatter pre-approves these tools: Read, Write, Edit, Bash, mcp__harness__harness_mem_*.
Does Memory 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 Memory 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 Memory use?
Memory 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 Memory use?
About 761 tokens (SKILL.md is roughly 3k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full. Its references folder adds about 5.2k tokens, read only when the agent opens those files.
What are the alternatives to Memory?
Skills that share tags, products or a category with Memory: Context Guardian (sickn33/agentic-awesome-skills, 47k stars), Fullstack Guardian (Jeffallan/claude-skills, 12k stars), Openclaw Guardian (LeoYeAI/openclaw-master-skills, 2.2k stars) and Scope Guardian Reviewer (udecode/plate, 17k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Memory?
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.