fix(workspace-context): require explicit byte budgets

examples/acp-agent/both-mode.cordis.snapshot.yml

@@ -17,6 +17,8 @@
         config:
           model: deepseek-v4-flash
           persistenceRoot: !!js process.env.DSH_SNAPSHOT_SESSIONS_ROOT ?? './.sessions'
+          workspaceContext:
+            maxBytes: 65536
           tools:
             mode: both
           persona: |

examples/acp-agent/both-mode.cordis.yml

@@ -16,6 +16,8 @@
         config:
           model: deepseek-v4-flash
           persistenceRoot: !!js process.env.DSH_SNAPSHOT_SESSIONS_ROOT ?? './.sessions'
+          workspaceContext:
+            maxBytes: 65536
           tools:
             mode: both
           persona: |

examples/acp-agent/code-mode.cordis.snapshot.yml

@@ -17,6 +17,8 @@
         config:
           model: deepseek-v4-flash
           persistenceRoot: !!js process.env.DSH_SNAPSHOT_SESSIONS_ROOT ?? './.sessions'
+          workspaceContext:
+            maxBytes: 65536
           tools:
             mode: code
           persona: |

examples/acp-agent/code-mode.cordis.yml

@@ -17,6 +17,8 @@
         config:
           model: deepseek-v4-flash
           persistenceRoot: !!js process.env.DSH_SNAPSHOT_SESSIONS_ROOT ?? './.sessions'
+          workspaceContext:
+            maxBytes: 65536
           tools:
             mode: code
           persona: |

examples/acp-agent/cordis.yml

@@ -38,6 +38,8 @@
   config:
     model: deepseek-v4-flash
     persistenceRoot: !!js process.env.DSH_SNAPSHOT_SESSIONS_ROOT ?? './.sessions'
+    workspaceContext:
+      maxBytes: 65536
     # The persona: identity + behavior only, nothing about transports or
     # tooling — tool guidance lives with each tool plugin (descriptions +
     # prompt sections). {{model}} and {{cwd}} are prompt variables the agent

examples/acp-agent/tests/snapshots/workspace-context/system-prompt.golden.md

@@ -0,0 +1,16 @@
+You are an AI agent powered by the DeepSeek Harness SDK.
+
+You are a coding assistant powered by the deepseek-v4-flash model. Your working directory is {{cwd}}.
+
+Verify your work by running the code or tests. Keep answers brief and factual.
+
+
+Use the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.
+
+Use the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.
+
+Use the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.
+
+Check the [exit code: N] marker on every bash result; investigate failures before moving on.
+
+Use the workflow tool ONLY when the user explicitly asks for a workflow or for large multi-agent orchestration: you write a JavaScript script (the tool description documents the exact format) that fans work out across many subagents with phases and structured results. For one or two delegations, prefer plain subagent calls.

examples/acp-agent/workspace-context.cordis.snapshot.yml

@@ -15,15 +15,14 @@
           model: deepseek-v4-flash
           persistenceRoot: !!js process.env.DSH_SNAPSHOT_SESSIONS_ROOT ?? './.sessions'
           workspaceContext:
+            maxBytes: 65536
             dshHome: !!js process.cwd() + '/.dsh'
             projectRootMarkers:
               - .dsh-project
           persona: |
-            You are a coding assistant powered by the {{model}} model. Your working
-            directory is {{cwd}}.
+            You are a coding assistant powered by the {{model}} model. Your working directory is {{cwd}}.
 
-            Verify your work by running the code or tests. Keep answers brief and
-            factual.
+            Verify your work by running the code or tests. Keep answers brief and factual.
       - insert:
           - id: llm-replay
             name: '@deepseek-ai/dsh-llm-replay'

examples/acp-agent/workspace-context.cordis.yml

@@ -12,12 +12,11 @@
           model: deepseek-v4-flash
           persistenceRoot: !!js process.env.DSH_SNAPSHOT_SESSIONS_ROOT ?? './.sessions'
           workspaceContext:
+            maxBytes: 65536
             dshHome: !!js process.cwd() + '/.dsh'
             projectRootMarkers:
               - .dsh-project
           persona: |
-            You are a coding assistant powered by the {{model}} model. Your working
-            directory is {{cwd}}.
+            You are a coding assistant powered by the {{model}} model. Your working directory is {{cwd}}.
 
-            Verify your work by running the code or tests. Keep answers brief and
-            factual.
+            Verify your work by running the code or tests. Keep answers brief and factual.

examples/coding-agent/code-mode.cordis.yml

@@ -19,6 +19,8 @@
           model: deepseek-v4-flash
           resumeSessionId: !!js process.env.RESUME_SESSION_ID
           persistenceRoot: './.sessions'
+          workspaceContext:
+            maxBytes: 65536
           tools:
             mode: code
           welcome: 'code-mode agent ready. Give it a multi-tool task.'

examples/coding-agent/cordis.yml

@@ -45,6 +45,8 @@
     # under ./.sessions); unset starts a fresh session each run.
     resumeSessionId: !!js process.env.RESUME_SESSION_ID
     persistenceRoot: './.sessions'
+    workspaceContext:
+      maxBytes: 65536
     welcome: 'agent REPL ready. Give it a coding task.'
     # The persona: identity + behavior only, nothing about transports or
     # tooling — tool guidance lives with each tool plugin (descriptions +

examples/cordis-agent/cordis.yml

@@ -61,6 +61,8 @@
     model: deepseek-v4-flash
     resumeSessionId: !!js process.env.RESUME_SESSION_ID
     persistenceRoot: './.sessions'
+    workspaceContext:
+      maxBytes: 65536
     welcome: 'cordis-agent ready. Ask it to inspect its runtime, mount a listener, or invent a tool for itself.'
     persona: |
       You are cordis-agent, a self-referential harness demo powered by the

examples/echo-agent/cordis.yml

@@ -43,3 +43,5 @@
     persona: 'You are echo-agent, a demo agent.'
     welcome: 'echo-agent ready. Type a message ("echo <text>" triggers the tool).'
     persistenceRoot: './.sessions'
+    workspaceContext:
+      maxBytes: 65536

examples/sandbox-acp-agent/cordis.yml

@@ -54,6 +54,8 @@
     # sets it (so a record run's logs land where the harness harvests them),
     # else the local ./.sessions default.
     persistenceRoot: !!js process.env.DSH_SNAPSHOT_SESSIONS_ROOT ?? './.sessions'
+    workspaceContext:
+      maxBytes: 65536
     persona: |
       You are a coding assistant powered by the {{model}} model. Your working directory is {{cwd}}. Your bash tool runs under a file sandbox — a `[sandbox: file access denied …]` result is policy, not a command bug.