Cache Skill for Claude

Cache

CRUD interface for .hyperflow/memory/. Full protocol: memory-system.md.

Storage

All operations target .hyperflow/memory/ at the project root. Never modify source code files — if asked to "remember X about file Y", add a memory entry only, never edit Y.

Subcommands

| Subcommand | Description |

|---|---|

| show [tag] | Print index or filter entries by tag |

| search <query> | Full-text search across all memory files |

| add <category> <title> | Append a new entry (prompts for details) |

| edit <entry-id> | Find entry by date+title slug and update in place |

| prune | Remove stale, superseded, and orphaned entries |

| archive | Move entries older than 30 days to cold storage |

| clear | Wipe all memory (with confirmation, recoverable) |

| stats | Counts, tier breakdown, tag frequency, oldest/newest |

| migrate | Import entries from legacy ~/.claude/hyperflow-memory.md |

| off | Disable memory writes for this session |

| compact | Summarise aged memory entries into stubs + monthly archive sidecars |

Subcommand Details

show [tag]

No arg → print index.md. With tag → filter all files for matching entries.

Output table: Date | Title | Tags | File | Tier

search <query>

grep/ripgrep across learnings.md, decisions.md, pitfalls.md, patterns.md, conventions.md.

Return file:line + snippet, ranked by relevance.

add <category> <title>

Categories: learning decision pitfall pattern convention

Prompt via AskUserQuestion for: what, why it matters, tags (controlled vocab).

Append to the matching file using:

### [YYYY-MM-DD] <title>  `[tag1, tag2]`
**What:** ...
**Why it matters:** ...
**Evidence:** ...

That is the whole write. index.md is derived — scripts/memory-index.py rebuilds it at the next session start. Never append index rows by hand; to refresh it now, run python3 scripts/memory-index.py .hyperflow.

edit <entry-id>

Locate by date+title slug. Show current value, prompt for new value, update in place.

prune

Per memory-system.md pruning protocol:

• Remove [SUPERSEDED] entries older than 7 days
• Remove entries whose referenced files no longer exist (test -f)
• Archive entries unreferenced 90+ days to .hyperflow/memory/archive/YYYY-MM.md

Print summary of removed/archived counts.

archive

Compress hot entries older than 30 days → .hyperflow/memory/archive/YYYY-MM.md.

Leave one-line summary in original file. The stub keeps its date, so the derived index re-tiers it to cold on its own.

clear

Confirm via AskUserQuestion: "This wipes all memory for this project. Are you sure?"

If yes → move all content to .hyperflow/memory/archive/cleared-<timestamp>.md, then reset files to empty stubs.

stats

Print: total entries, hot/warm/cold counts, tag frequency table, oldest and newest entry dates.

migrate

Read ~/.claude/hyperflow-memory.md, filter entries matching current project path.

Append matching entries to learnings.md. Leave legacy file untouched.

Print count of migrated entries.

off

Print: "Memory writes disabled for this session." No files modified.

compact

User-invoked memory compaction. Summarises entries older than 7 days into stub lines and preserves the full text in monthly archive sidecars at .hyperflow/memory/archive/YYYY-MM.md.

Flow:

• The compact subcommand handler reads the target memory file (default: learnings.md; pass a path to target another).
• The Date/tag parser splits entries into hot (≤7 days, preserved) and eligible (>7 days). Both [domain, type] and legacy backticked [domain, type] tag forms are accepted.
• The Compaction Writer is dispatched in a single batch with all eligible entries.
• The Stub formatter renders each replacement line as ### [YYYY-MM-DD] Short title [domain, type] — summarized, see archive/YYYY-MM.md.
• The Dedup Reviewer performs source-side stub-line match and archive-side header match (date + title + tags on both sides) to prevent duplicates.
• The Archive-sidecar writer appends accepted entries to archive/YYYY-MM.md, grouped by each entry's calendar month.
• The source file is rewritten with stubs replacing the original entries.
• The compact subcommand handler refreshes .hyperflow/memory/.checksums (a memory-scoped sidecar — distinct from .hyperflow/.checksums which the scaffold staleness check owns) and exits with a summary.

Output: N entries compacted into archive/YYYY-MM.md · M stubs rejected as duplicates · source N→M lines. Full protocol in compaction.md.

Flow

• Parse invocation to determine subcommand
• If subcommand missing → list subcommands table above with one-line descriptions
• Execute subcommand
• Print structured result with counts/changes summary

Overview

/hyperflow:cache is the operator interface to project-scoped memory under .hyperflow/memory/. It's the only skill that mutates memory files directly (other skills append via the memory-system protocol). Subcommands cover the full lifecycle: show, search, add, edit, prune, archive, clear, stats, migrate. All operations are project-local — entries never leak across projects.

Prerequisites

• .hyperflow/ initialized (run /hyperflow:scaffold if missing — cache creates .hyperflow/memory/ on first write but expects the parent dir).
• Write access to .hyperflow/memory/ and .hyperflow/memory/archive/.
• For migrate only: read access to ~/.claude/hyperflow-memory.md (legacy global memory).

Instructions

See Subcommands and Subcommand Details above for the full operational spec. Summary:

• Parse the subcommand from the user's invocation (or list subcommands if none given).
• Validate prerequisites for the chosen subcommand (e.g. clear requires AskUserQuestion confirmation; migrate requires legacy file presence).
• Execute the subcommand against .hyperflow/memory/.
• Print structured result with counts and any file-level changes.

Output

Each subcommand prints a compact summary:

• show — table of matching entries (Date | Title | Tags | File | Tier).
• search — file:line matches with snippets, ranked by relevance.
• add / edit — confirmation line with new entry id and target file.
• prune / archive / clear — counts of removed/archived/cleared entries plus destination paths.
• stats — totals + hot/warm/cold breakdown + top-N tags.
• migrate — count of migrated entries + source legacy file path.
• off — single-line Memory writes disabled for this session.

Error Handling

| Failure | Behavior |

|---|---|

| .hyperflow/memory/ missing | Auto-create skeleton (index.md + 5 category files + archive/.gitkeep) on first write; for read-only subcommands, print (no memory yet — invoke /hyperflow:scaffold first). |

| Subcommand unknown | Print subcommands table; suggest closest match via Levenshtein distance. |

| add with invalid category | Reject and list valid categories: learning, decision, pitfall, pattern, convention. |

| edit entry id not found | List 3 closest matches by title slug + date. |

| clear without confirmation (headless) | Refuse and print clear requires interactive confirmation. Do not wipe. |

| migrate source file missing | Print (nothing to migrate — ~/.claude/hyperflow-memory.md not found) and stop. |

Examples

Show all entries

/hyperflow:cache show

Date         Title                              Tags                  File              Tier
2026-05-16   Bash scoping required by validator [validator, marketplace] learnings.md   hot
2026-05-15   No AI attribution in commits       [convention, git]     conventions.md    hot
2026-05-14   Per-task commits in plugin dev     [convention, git]     conventions.md    hot
3 entries (3 hot, 0 warm, 0 cold)

Search

/hyperflow:cache search "validator"

.hyperflow/memory/learnings.md:42 — "Jeremy's validator requires scoped Bash..."
.hyperflow/memory/decisions.md:8 — "...validator score of 73 → 94 after fix"
2 matches

Add a learning

/hyperflow:cache add learning "Markdown frontmatter needs block scalar for colons"

? What: Block scalar (|) preserves : and backticks in YAML values
? Why it matters: prevents fatal YAML parse failures in marketplace validators
? Tags: yaml, validator, frontmatter
Added — .hyperflow/memory/learnings.md (entry 2026-05-16-block-scalar-frontmatter)

Stats

/hyperflow:cache stats

Memory entries: 47
  Hot   (≤7d)   12
  Warm  (8-30d) 23
  Cold  (30d+)  12
Top tags: validator (8), convention (7), git (6), yaml (4)
Oldest: 2026-02-14   Newest: 2026-05-16

Resources

• memory-system.md — full protocol: files, tiers, tagging, pruning rules.
• compaction.md — /hyperflow:cache compact protocol: stub format, archive sidecar, idempotency.
• output-style.md — label and table conventions.
• DOCTRINE.md — orchestration rules.