Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx agentmods add instructions/alexanderistomin/barry-cache/agents-mdgit clone --depth 1 https://github.com/AlexanderIstomin/barry-cacheWrote 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.
[](https://agentmods.dev/instructions/alexanderistomin/barry-cache/agents-md)<a href="https://agentmods.dev/instructions/alexanderistomin/barry-cache/agents-md"><img src="https://agentmods.dev/badge/instructions/alexanderistomin/barry-cache/agents-md.svg" alt="Measured on agentmods" height="20"></a>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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.01228 | $0.01228 |
| Opus 5 | $0.00614 | $0.00614 |
| Sonnet 5 | $0.00246 | $0.00246 |
| Haiku 4.5 | $0.00123 | $0.00123 |
Grade A, and why
barry-cache AGENTS.md 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 5d ago.
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.
Copies of this mod
1 near-identical copy found in the catalogue:
- barry-cache CLAUDE.md — 100% identical, 0 lines differ
How it starts
The opening of the file, as written. The whole thing — 80 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Barry Cache
Barry Cache remembers this repo through source-backed context files.
Use the repo package script so Barry Cache runs from the local npm dependency without relying on shell PATH. If the dependency is missing, run bun install first. Use npx barry-cache <command> only when package scripts are unavailable.
Repeated retrieval commands use the disposable parsed index in .context-cache/context-index.json when source context files have not changed.
Start task context with:
bun run barry -- resume --task "<task>"
Use focused retrieval during work:
bun run barry -- route --task "<task>"
bun run barry -- search --query "<query>"
bun run barry -- load --route "<route>"
load and resume return a relevance-ranked budgeted slice by default (~2000 tokens per pack), not the whole pack. Trust the slice — the result lists any dropped fact ids and an expand_hint. If a needed fact is missing, restore just that id with --expand <id>; use --expand all only when you genuinely need the full pack, or --budget <N> to resize.
Workspace context is optional. When docs/context/workspaces.json exists and you know relevant files or directories, include them so Barry can choose the right workspace:
bun run barry -- resume --task "<task>" --paths "path-a,path-b"
bun run barry -- workspace infer --task "<task>" --paths "path-a,path-b"
Use the workspace Barry selects. If Barry reports workspace_decision.status: "ambiguous", do not guess — ask the user or rerun with --workspace <slug>.
When context files change, run:
bun run barry -- validate
Before handing off substantial work, record factual evidence:
bun run barry -- finalize --status success --summary "<summary>" --files "path-a,path-b"
When user validation shows previous work is broken, record the contradiction before or while fixing it:
bun run barry -- failure record --summary "<what failed>" --expected "<expected behavior>" --actual "<observed behavior>" --challenges "<handoff-or-fact-id>"
Memory policy:
- Private vs. canonical memory: your agent's own private memory — the local store only you can read (for Claude Code,
MEMORY.mdand its files; other agents have their own) — is invisible to every other agent. Use it only for cross-session personal context — user preferences, how to work with this user, and external references. - Any decision, fact, or constraint another agent would need goes to Barry, never a private memory: an ADR, a
docs/context/features/*/FACTS.jsonlfact, or afinalize/failurerecord. If you are about to write aproject-type private memory, that is the signal to route it to Barry instead. feedback-type guidance splits on who it serves: keep it private only when it is about working with this user personally (explanation depth, tone, review style). Guidance that states a rule every agent on this repo should follow (e.g. "always runbun run barry -- validatebeforefinalize") is a policy, not a preference — route it to Barry as an ADR/AGENTS.mdpolicy or adecisionfact.- Finalize writes operational memory only.
- Failure records write operational validation memory only and should challenge stale handoffs or facts instead of rewriting history.
- Do not claim Barry canonical memory is updated unless
docs/context/changed. - If a task adds durable implementation behavior, add or update source-backed facts in
docs/context/features/*/FACTS.jsonland runbun run barry -- validate. - Direct
FACTS.jsonledits remain supported; usebun run barry -- fact draft --route "<route>" --prefix "<PREFIX>" ...when a schema-checked JSONL draft or explicit--writeappend is safer. fact draftis an authoring guardrail, not broad canonical CRUD; review the resulting diff and runbun run barry -- validate.- Use ISO 8601 timestamps in fact
updated_atvalues when saving new facts, so same-day feature order is preserved in review timelines. - Use collision-resistant fact IDs like
REV-20260526T160512Z-a8f3; dense review UI may display them asREV-a8f3.
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.
- 5d ago First seen · 80 lines · 1,228 tokens per session scan A 8f6d0301b44a
barry-cache AGENTS.md is an instructions file published in the GitHub repository AlexanderIstomin/barry-cache (5 stars, last pushed 1mo ago), licensed Apache-2.0. It adds 1,228 tokens to every session, about $0.0061 per session on Opus 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 2026-08-31.
Other instructions, from other repositories
aeon CLAUDE.md
Claude Code instructions for aeonfun/aeon, covering aeon, how aeon works, strategy, voice and soul file hierarchy (read in this order).
cognirepo CLAUDE.md
Claude Code instructions for ashlesh-t/cognirepo, covering claude.md, key rules, session start sequence (run in this order), behavioral confirmation rule and personas (cognirepo-402, cognirepo-403).
wayland-core copilot-instructions.md
Copilot instructions for FerroxLabs/wayland-core, covering ijfw rules, output discipline, memory routing, context discipline and cross-audit.
mcp-structured-memory CLAUDE.md
Claude Code instructions for nmeierpolys/mcp-structured-memory, a project described as: Structured Memory MCP Server.
inkwell-memory CLAUDE.md
Instructions for veronchenko/inkwell-memory, covering claude.md — inkwellmemory, layout, multi-tenant mode (inkwellmultitenant=1), conventions and testing.
memory-mcp-1file AGENTS.md
Instructions for pomazanbohdan/memory-mcp-1file, covering ⛔ l0 invariants (never violate under any circumstance), detection heuristic, 🔀 phase transition routing (⛔ blocking), gate-0: phase identification & loading and 🧾 proof-of-load requirement (critical).