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subzeroclaw-contribute

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Price unconfirmed★ 134 GitHub starsRegistry updated · Sep 6, 2026agent-skill

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Contributing to SubZeroClaw

SubZeroClaw is an anti-framework: the goal is not to grow but to stay minimal, readable and correct. The whole runtime is one file, src/subzeroclaw.c (~550 lines). Before you add anything, read CONTRIBUTING.md — a PR that adds surface has to clear a high bar, and several categories are refused outright.

The two contributions that are welcome

Reduce complexity — same behaviour with less code, fewer moving parts, or clearer logic: remove a function that doesn't earn its place, flatten a control path, drop a dependency or an allocation, replace a hand-rolled pattern with libc. A PR that removes lines while keeping tests green is probably good.
Prove a runtime limitation — a task where "skill + shell + LLM loop" genuinely breaks down in the runtime, not the skill. The honest test: could a better .md skill fix it? If yes, it's a skill problem, not a SubZeroClaw one. If the limitation is structural (e.g. binary tool output can't round-trip through the JSON string protocol), that's worth discussing. Open an issue with the task, the skill you wrote, what happened, and why no skill can work around it.

Won't be merged: new tools (the shell is the only tool — the model runs git, tee, curl itself); plugin systems, hooks, event buses, middleware (multi-user platform problems SubZeroClaw doesn't have); backward-compatibility shims.

Code map (`src/subzeroclaw.c`)

The loop, top to bottom:

Function	Role
`config_parse_line` / `config_load`	parse the config keys; env overrides; scrub the four provider secrets (`SUBZEROCLAW_API_KEY`/`_ENDPOINT`/`_REQUEST_EXTRA`/`_COMPACT_EXTRA`) from the environment (wipe-in-place + `unsetenv`) so the model's shell never sees the key. `SUBZEROCLAW_SKILLS` is preserved on purpose.
`main`	read config + skills, build the system prompt, seed the message array, drive the loop.
`agent_run`	the turn loop: POST to `endpoint`, parse, dispatch tools, until a stop or `max_turns`.
`parse_response`	pull assistant text / tool calls / errors out of the completion JSON.
`process_tool_calls`	the one tool: run each shell command via `popen()` (stderr merged), append results as turns.
`round_has_command`	guard: did this round actually request a shell command?
`compact_fire` / `compact_splice` / `compact_url`	async context sealing: on the router's `x_router.compact` signal, fire `/v1/compact` in the background and splice the sealed block in ahead of intervening turns — no turn is ever blocked.
`log_write`, `write_temp`, `mkdirp`	session logging + scratch files.

cJSON is vendored (src/cJSON.c/.h) and used automatically when system libcjson is absent (the Makefile detects it via pkg-config).

Build & test

make            # single-file build → subzeroclaw (needs gcc; -lm or -lcjson)
make test       # builds test_subzeroclaw and runs the suite → "31 passed, 0 failed"
make install    # → ~/.local/bin/
make clean

src/test.c #includes src/subzeroclaw.c directly and defines SZC_TEST to exclude main, so tests link against the real functions. All 31 tests must pass, and if you change subzeroclaw.c you must update test.c to match — the suite covers the shell tool, turn framing, request building + request_extra merge, response/error parsing, the compact flag + splice, tool dispatch, the system prompt, skill loading, and config (including the env scrub).

The bar, restated

Every line justifies its existence. The code that remains is the code that can't be removed. If your change grows the file, the burden is on you to show the runtime — not a skill — needed it. See CONTRIBUTING.md for the full policy.

View source ↗

File metadata

name: subzeroclaw-contribute
description: >-
  Develop SubZeroClaw — the single-file ~550-line C agentic runtime. Load this
  before changing src/subzeroclaw.c or src/test.c: it carries the anti-framework
  thesis (the goal is NOT to grow), the code map (the loop, config, the shell
  tool, async compaction), what will and won't be merged, and the build/test
  loop. To merely run or configure SubZeroClaw, use subzeroclaw-use.

View original text

---
name: subzeroclaw-contribute
description: >-
  Develop SubZeroClaw — the single-file ~550-line C agentic runtime. Load this
  before changing src/subzeroclaw.c or src/test.c: it carries the anti-framework
  thesis (the goal is NOT to grow), the code map (the loop, config, the shell
  tool, async compaction), what will and won't be merged, and the build/test
  loop. To merely run or configure SubZeroClaw, use subzeroclaw-use.
---

# Contributing to SubZeroClaw

SubZeroClaw is an **anti-framework**: the goal is not to grow but to stay minimal,
readable and correct. The whole runtime is one file, `src/subzeroclaw.c`
(~550 lines). Before you add anything, read `CONTRIBUTING.md` — a PR that *adds*
surface has to clear a high bar, and several categories are refused outright.

## The two contributions that are welcome

1. **Reduce complexity** — same behaviour with less code, fewer moving parts, or
   clearer logic: remove a function that doesn't earn its place, flatten a control
   path, drop a dependency or an allocation, replace a hand-rolled pattern with
   libc. A PR that removes lines while keeping tests green is probably good.
2. **Prove a runtime limitation** — a task where "skill + shell + LLM loop" genuinely
   breaks down *in the runtime, not the skill*. The honest test: could a better
   `.md` skill fix it? If yes, it's a skill problem, not a SubZeroClaw one. If the
   limitation is structural (e.g. binary tool output can't round-trip through the
   JSON string protocol), that's worth discussing. Open an issue with the task, the
   skill you wrote, what happened, and why no skill can work around it.

**Won't be merged:** new tools (the shell is the only tool — the model runs `git`,
`tee`, `curl` itself); plugin systems, hooks, event buses, middleware (multi-user
platform problems SubZeroClaw doesn't have); backward-compatibility shims.

## Code map (`src/subzeroclaw.c`)

The loop, top to bottom:

| Function | Role |
|---|---|
| `config_parse_line` / `config_load` | parse the config keys; env overrides; **scrub the four provider secrets** (`SUBZEROCLAW_API_KEY`/`_ENDPOINT`/`_REQUEST_EXTRA`/`_COMPACT_EXTRA`) from the environment (wipe-in-place + `unsetenv`) so the model's shell never sees the key. `SUBZEROCLAW_SKILLS` is preserved on purpose. |
| `main` | read config + skills, build the system prompt, seed the message array, drive the loop. |
| `agent_run` | the turn loop: POST to `endpoint`, parse, dispatch tools, until a stop or `max_turns`. |
| `parse_response` | pull assistant text / tool calls / errors out of the completion JSON. |
| `process_tool_calls` | the **one tool**: run each shell command via `popen()` (stderr merged), append results as turns. |
| `round_has_command` | guard: did this round actually request a shell command? |
| `compact_fire` / `compact_splice` / `compact_url` | async context sealing: on the router's `x_router.compact` signal, fire `/v1/compact` in the background and splice the sealed block in ahead of intervening turns — no turn is ever blocked. |
| `log_write`, `write_temp`, `mkdirp` | session logging + scratch files. |

`cJSON` is vendored (`src/cJSON.c/.h`) and used automatically when system
`libcjson` is absent (the Makefile detects it via `pkg-config`).

## Build & test

```bash
make            # single-file build → subzeroclaw (needs gcc; -lm or -lcjson)
make test       # builds test_subzeroclaw and runs the suite → "31 passed, 0 failed"
make install    # → ~/.local/bin/
make clean
```

`src/test.c` `#include`s `src/subzeroclaw.c` directly and defines `SZC_TEST` to
exclude `main`, so tests link against the real functions. **All 31 tests must
pass**, and if you change `subzeroclaw.c` you must update `test.c` to match — the
suite covers the shell tool, turn framing, request building + `request_extra`
merge, response/error parsing, the compact flag + splice, tool dispatch, the
system prompt, skill loading, and config (including the env scrub).

## The bar, restated

Every line justifies its existence. The code that remains is the code that can't
be removed. If your change grows the file, the burden is on you to show the
runtime — not a skill — needed it. See `CONTRIBUTING.md` for the full policy.

Review the source

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Review before install: Avoid automatic install

License: MIT

Dependency or permission surface needs review
Permission surface may require sandboxing
Quality score needs review
Permission surface needs review: secrets or environment access, shell or command execution
Stars/forks activity: 134 stars, 17 forks; issue activity unavailable in current metadata
Dependency/runtime risk: command execution surface, credential or environment access
Permission surface: secrets or environment access, shell or command execution

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Source & usage notes

Indexed

Repository metadata and review signals are advisory. Popularity, source discovery and successful execution are different facts.

Source repository: genlayerlabs/subzeroclaw
License: MIT
Version: 1.0.0
Last GitHub push: Sep 5, 2026
Registry updated: Sep 6, 2026
Instruction path: .claude/skills/subzeroclaw-contribute/SKILL.md @ e39b51b8eccc

Version reported in registry metadata; check source releases before relying on it.

Quality

65/100

Promising

Trust

63/100

Sandbox only

Audit

75/100

Needs review

Open full audit View eval report

Dependency or permission surface needs review
Permission surface may require sandboxing
Quality score needs review
Permission surface needs review: secrets or environment access, shell or command execution
Stars/forks activity: 134 stars, 17 forks; issue activity unavailable in current metadata
Dependency/runtime risk: command execution surface, credential or environment access
Permission surface: secrets or environment access, shell or command execution

Verified installs: —
Outcomes: —

Copies are not installs. Installation counts require a reported successful installation; they are not a blanket quality guarantee.

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subzeroclaw-contribute

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Price unconfirmed★ 134 GitHub starsRegistry updated · Sep 6, 2026agent-skill

Overview

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Contributing to SubZeroClaw

The two contributions that are welcome

Reduce complexity — same behaviour with less code, fewer moving parts, or clearer logic: remove a function that doesn't earn its place, flatten a control path, drop a dependency or an allocation, replace a hand-rolled pattern with libc. A PR that removes lines while keeping tests green is probably good.
Prove a runtime limitation — a task where "skill + shell + LLM loop" genuinely breaks down in the runtime, not the skill. The honest test: could a better .md skill fix it? If yes, it's a skill problem, not a SubZeroClaw one. If the limitation is structural (e.g. binary tool output can't round-trip through the JSON string protocol), that's worth discussing. Open an issue with the task, the skill you wrote, what happened, and why no skill can work around it.

Code map (`src/subzeroclaw.c`)

The loop, top to bottom:

Function	Role
`config_parse_line` / `config_load`	parse the config keys; env overrides; scrub the four provider secrets (`SUBZEROCLAW_API_KEY`/`_ENDPOINT`/`_REQUEST_EXTRA`/`_COMPACT_EXTRA`) from the environment (wipe-in-place + `unsetenv`) so the model's shell never sees the key. `SUBZEROCLAW_SKILLS` is preserved on purpose.
`main`	read config + skills, build the system prompt, seed the message array, drive the loop.
`agent_run`	the turn loop: POST to `endpoint`, parse, dispatch tools, until a stop or `max_turns`.
`parse_response`	pull assistant text / tool calls / errors out of the completion JSON.
`process_tool_calls`	the one tool: run each shell command via `popen()` (stderr merged), append results as turns.
`round_has_command`	guard: did this round actually request a shell command?
`compact_fire` / `compact_splice` / `compact_url`	async context sealing: on the router's `x_router.compact` signal, fire `/v1/compact` in the background and splice the sealed block in ahead of intervening turns — no turn is ever blocked.
`log_write`, `write_temp`, `mkdirp`	session logging + scratch files.

cJSON is vendored (src/cJSON.c/.h) and used automatically when system libcjson is absent (the Makefile detects it via pkg-config).

Build & test

make            # single-file build → subzeroclaw (needs gcc; -lm or -lcjson)
make test       # builds test_subzeroclaw and runs the suite → "31 passed, 0 failed"
make install    # → ~/.local/bin/
make clean

The bar, restated

View source ↗

File metadata

name: subzeroclaw-contribute
description: >-
  Develop SubZeroClaw — the single-file ~550-line C agentic runtime. Load this
  before changing src/subzeroclaw.c or src/test.c: it carries the anti-framework
  thesis (the goal is NOT to grow), the code map (the loop, config, the shell
  tool, async compaction), what will and won't be merged, and the build/test
  loop. To merely run or configure SubZeroClaw, use subzeroclaw-use.

View original text

---
name: subzeroclaw-contribute
description: >-
  Develop SubZeroClaw — the single-file ~550-line C agentic runtime. Load this
  before changing src/subzeroclaw.c or src/test.c: it carries the anti-framework
  thesis (the goal is NOT to grow), the code map (the loop, config, the shell
  tool, async compaction), what will and won't be merged, and the build/test
  loop. To merely run or configure SubZeroClaw, use subzeroclaw-use.
---

# Contributing to SubZeroClaw

SubZeroClaw is an **anti-framework**: the goal is not to grow but to stay minimal,
readable and correct. The whole runtime is one file, `src/subzeroclaw.c`
(~550 lines). Before you add anything, read `CONTRIBUTING.md` — a PR that *adds*
surface has to clear a high bar, and several categories are refused outright.

## The two contributions that are welcome

1. **Reduce complexity** — same behaviour with less code, fewer moving parts, or
   clearer logic: remove a function that doesn't earn its place, flatten a control
   path, drop a dependency or an allocation, replace a hand-rolled pattern with
   libc. A PR that removes lines while keeping tests green is probably good.
2. **Prove a runtime limitation** — a task where "skill + shell + LLM loop" genuinely
   breaks down *in the runtime, not the skill*. The honest test: could a better
   `.md` skill fix it? If yes, it's a skill problem, not a SubZeroClaw one. If the
   limitation is structural (e.g. binary tool output can't round-trip through the
   JSON string protocol), that's worth discussing. Open an issue with the task, the
   skill you wrote, what happened, and why no skill can work around it.

**Won't be merged:** new tools (the shell is the only tool — the model runs `git`,
`tee`, `curl` itself); plugin systems, hooks, event buses, middleware (multi-user
platform problems SubZeroClaw doesn't have); backward-compatibility shims.

## Code map (`src/subzeroclaw.c`)

The loop, top to bottom:

| Function | Role |
|---|---|
| `config_parse_line` / `config_load` | parse the config keys; env overrides; **scrub the four provider secrets** (`SUBZEROCLAW_API_KEY`/`_ENDPOINT`/`_REQUEST_EXTRA`/`_COMPACT_EXTRA`) from the environment (wipe-in-place + `unsetenv`) so the model's shell never sees the key. `SUBZEROCLAW_SKILLS` is preserved on purpose. |
| `main` | read config + skills, build the system prompt, seed the message array, drive the loop. |
| `agent_run` | the turn loop: POST to `endpoint`, parse, dispatch tools, until a stop or `max_turns`. |
| `parse_response` | pull assistant text / tool calls / errors out of the completion JSON. |
| `process_tool_calls` | the **one tool**: run each shell command via `popen()` (stderr merged), append results as turns. |
| `round_has_command` | guard: did this round actually request a shell command? |
| `compact_fire` / `compact_splice` / `compact_url` | async context sealing: on the router's `x_router.compact` signal, fire `/v1/compact` in the background and splice the sealed block in ahead of intervening turns — no turn is ever blocked. |
| `log_write`, `write_temp`, `mkdirp` | session logging + scratch files. |

`cJSON` is vendored (`src/cJSON.c/.h`) and used automatically when system
`libcjson` is absent (the Makefile detects it via `pkg-config`).

## Build & test

```bash
make            # single-file build → subzeroclaw (needs gcc; -lm or -lcjson)
make test       # builds test_subzeroclaw and runs the suite → "31 passed, 0 failed"
make install    # → ~/.local/bin/
make clean
```

`src/test.c` `#include`s `src/subzeroclaw.c` directly and defines `SZC_TEST` to
exclude `main`, so tests link against the real functions. **All 31 tests must
pass**, and if you change `subzeroclaw.c` you must update `test.c` to match — the
suite covers the shell tool, turn framing, request building + `request_extra`
merge, response/error parsing, the compact flag + splice, tool dispatch, the
system prompt, skill loading, and config (including the env scrub).

## The bar, restated

Every line justifies its existence. The code that remains is the code that can't
be removed. If your change grows the file, the burden is on you to show the
runtime — not a skill — needed it. See `CONTRIBUTING.md` for the full policy.

Review the source

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Skill source recorded

Skill instructions are recorded. This is not a runtime test, safety guarantee or compatibility certification.

Review before install: Avoid automatic install

License: MIT

Dependency or permission surface needs review
Permission surface may require sandboxing
Quality score needs review
Permission surface needs review: secrets or environment access, shell or command execution
Stars/forks activity: 134 stars, 17 forks; issue activity unavailable in current metadata
Dependency/runtime risk: command execution surface, credential or environment access
Permission surface: secrets or environment access, shell or command execution

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Source & usage notes

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Repository metadata and review signals are advisory. Popularity, source discovery and successful execution are different facts.

Source repository: genlayerlabs/subzeroclaw
License: MIT
Version: 1.0.0
Last GitHub push: Sep 5, 2026
Registry updated: Sep 6, 2026
Instruction path: .claude/skills/subzeroclaw-contribute/SKILL.md @ e39b51b8eccc

Version reported in registry metadata; check source releases before relying on it.

Quality

65/100

Promising

Trust

63/100

Sandbox only

Audit

75/100

Needs review

Open full audit View eval report

Dependency or permission surface needs review
Permission surface may require sandboxing
Quality score needs review
Permission surface needs review: secrets or environment access, shell or command execution
Stars/forks activity: 134 stars, 17 forks; issue activity unavailable in current metadata
Dependency/runtime risk: command execution surface, credential or environment access
Permission surface: secrets or environment access, shell or command execution

Verified installs: —
Outcomes: —

Copies are not installs. Installation counts require a reported successful installation; they are not a blanket quality guarantee.

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Show the canonical listing, current trust and audit signals, and real Agent-Proven evidence where developers evaluate the repository.

[![Listed on OpenAgentSkill](https://www.openagentskill.com/api/badge/genlayerlabs-subzeroclaw-contribute?metric=listed&label=Listed)](https://www.openagentskill.com/skills/genlayerlabs-subzeroclaw-contribute?ref=github&utm_source=github&utm_medium=referral&utm_campaign=creator_badge)
[![OpenAgentSkill Trust](https://www.openagentskill.com/api/badge/genlayerlabs-subzeroclaw-contribute?metric=trust&label=Trust)](https://www.openagentskill.com/skills/genlayerlabs-subzeroclaw-contribute?ref=github&utm_source=github&utm_medium=referral&utm_campaign=creator_badge)
[![OpenAgentSkill Audit](https://www.openagentskill.com/api/badge/genlayerlabs-subzeroclaw-contribute?metric=audit&label=Audit)](https://www.openagentskill.com/skills/genlayerlabs-subzeroclaw-contribute/audit)
[![Agent Proven](https://www.openagentskill.com/api/badge/genlayerlabs-subzeroclaw-contribute?metric=proven&label=Agent%20Proven)](https://www.openagentskill.com/skills/genlayerlabs-subzeroclaw-contribute?ref=github&utm_source=github&utm_medium=referral&utm_campaign=creator_badge)

Preview badge Open audit Creator kit

Community signal

Share whether this skill looks useful for your agent workflow. Aggregated feedback improves rankings over time.

Overview

Contributing to SubZeroClaw

The two contributions that are welcome

Code map (src/subzeroclaw.c)

Build & test

The bar, restated

Review the source

Price & running costs

Start with one small task

Source & usage notes

Agent access

Related skills

For the creator

Registry indexed

Claim this skill listing

Add the evidence badges to your README

Community signal

Overview

Contributing to SubZeroClaw

The two contributions that are welcome

Code map (src/subzeroclaw.c)

Build & test

The bar, restated

Review the source

Price & running costs

Start with one small task

Source & usage notes

Agent access

Related skills

For the creator

Registry indexed

Claim this skill listing

Add the evidence badges to your README

Community signal

Code map (`src/subzeroclaw.c`)

Code map (`src/subzeroclaw.c`)